Medicare Part C illustration depicting Medicare Advantage as a carnival of plan choices, including HMO and PPO networks, prescription coverage, dental, vision, hearing benefits, prior authorization, and out-of-pocket costs.

Medicare Part C Explained in Plain English

Where Medicare Advantage actually came from, how the government pays for it, why it’s become so popular, and the honest tradeoffs and controversies behind the $0 premium.

The Short Answer

Medicare Part C — better known by its commercial name, Medicare Advantage — is a private alternative to Original Medicare. Instead of the government paying your medical bills directly, it pays a private insurance company a fixed monthly amount per member, and that company becomes responsible for your care, typically bundling in prescription drug coverage and extras like dental and vision. It’s popular for good reason: low or $0 premiums, predictable copays, and one card instead of three. But it comes with real structural tradeoffs — network restrictions, prior authorization, and a payment system that’s been the subject of serious, ongoing debate in Washington about whether it actually saves the government money at all.

For a full breakdown of costs, plan types, and how to choose between Medicare Advantage and Medigap, see our [complete Medicare Advantage guide]. This article focuses on where Part C came from and how it actually works.

Key Takeaways

  • Part C didn’t exist until 1997, and it wasn’t called “Medicare Advantage” until 2003 — it’s a genuinely newer invention than Parts A and B.
  • The government pays private insurers a fixed monthly fee per member (called capitation), which shifts financial risk from the government onto the insurance company.
  • Roughly half of all Medicare beneficiaries now choose Medicare Advantage, driven mainly by lower upfront costs, bundled extra benefits, and simplicity.
  • Plan richness varies enormously by county because CMS pays insurers a different benchmark amount per person depending on local Medicare spending — high-cost counties generate bigger rebates, which insurers convert into more plans and richer extra benefits.
  • The same carrier’s brand name means very little on its own — a company like Humana or UnitedHealthcare sells many distinct plans across different counties, each with its own network, formulary, and star rating, so two people with the same company can have genuinely different coverage.
  • Some carriers have been documented reducing broker commissions or restricting enrollment on unprofitable plans to discourage new members likely to need expensive care — a real reason to work with an independent agent who isn’t financially steered toward any one carrier.
  • A 2026 study found roughly 10% of Medicare Advantage enrollees were forced to find new coverage after their carrier exited their county or terminated their plan — a dramatic jump from historical norms, with rural and smaller-carrier members disproportionately affected.
  • Medigap carriers use a similar playbook with “teaser rates” — pricing aggressively low to attract members, then raising premiums sharply once medical underwriting makes switching difficult for many.
  • Despite the original goal of saving the government money, independent federal analysts estimate Medicare Advantage actually costs more per enrollee than Original Medicare would for the same person — a genuinely contested, actively debated finding.
  • New York’s unique Medigap rules create a real strategic option most other states don’t have: starting on Medicare Advantage and safely switching to Medigap later without medical underwriting.

Where Medicare Advantage Actually Came From

Medicare Part A and Part B date back to 1965. Part C is a much newer addition, and understanding why it exists tells you a lot about how it’s designed to work.

When Medicare was created, it operated purely as fee-for-service: doctors and hospitals billed the government separately for every visit, test, and procedure. By the 1980s and 1990s, this open-ended structure was driving government healthcare spending up at a pace lawmakers considered unsustainable.

The Balanced Budget Act of 1997 created the framework for what we now call Part C, originally named “Medicare+Choice.” The idea was to let private insurers — companies like the ones many people already used through their employers — compete for Medicare business, betting that private managed care could deliver care more efficiently than a large government program.

There was an early problem, though: Medicare+Choice plans couldn’t offer prescription drug coverage, because Medicare itself didn’t cover prescription drugs yet. That changed with the Medicare Prescription Drug, Improvement, and Modernization Act of 2003, which did two things at once: it renamed Medicare+Choice to Medicare Advantage, and it created Part D. For the first time, private plans could bundle hospital care, doctor visits, and prescription drugs into a single package under one card.

Paul’s Honest Take: Understanding this history actually explains a lot about why Medicare Advantage looks the way it does today. It was built, from the start, around the idea of private companies managing care more efficiently than government fee-for-service ever could. Whether that promise has actually been kept is a genuinely debated question — more on that below — but it’s the whole reason the program exists in its current form.

How It Actually Works: Capitation, in Plain English

Here’s the mechanism that makes Medicare Advantage fundamentally different from Original Medicare, and it’s worth understanding clearly:

Under Original Medicare, the government pays providers directly for each individual service. If a beneficiary gets seriously ill, the government’s financial exposure is essentially open-ended — it pays whatever the covered care actually costs.

Under Medicare Advantage, the government instead pays a private insurance company a fixed, flat monthly fee per enrolled member — a payment method called capitation. That amount is adjusted based on each member’s health risk profile, but once it’s set, the insurance company takes on the financial risk. If a member’s actual care costs more than what the government paid for them that month, the insurer absorbs the difference. If costs come in lower, the insurer keeps the difference.

Paul’s Honest Take: This is the entire logic behind Medicare Advantage in one sentence: the government hands the financial risk to a private company in exchange for a predictable, fixed cost per person. That’s also exactly why Medicare Advantage plans have real incentives — for better and worse — to manage your care actively: through prior authorization, network steering, and care coordination. It’s a fundamentally different financial relationship than Original Medicare’s fee-for-service model, and that difference is what shapes almost everything else about how the plan behaves.

Why Your County Has 12 Plans and Your Cousin’s Has 60

Here’s something that genuinely surprises people, and it’s a direct consequence of how capitation actually works: the federal government pays private insurers a different amount per person depending entirely on which county you live in — and that difference is the single biggest reason plan richness varies so dramatically from place to place.

How the county benchmark works

Every year, CMS calculates a benchmark for every county in the country — the maximum it’s willing to pay a private insurer, per member, to manage that county’s Medicare population. This benchmark is based directly on how much Original Medicare has historically spent per person in that specific county.

To keep insurers interested in lower-cost, often rural areas, and to avoid overpaying in high-cost areas, CMS sorts every county into one of four quartiles based on historical Original Medicare spending, and applies a different percentage to each:

County Spending Quartile

Benchmark (% of local Original Medicare spending)

Lowest-spending 25% of counties

115%

Second-lowest quartile

107.5%

Second-highest quartile

100%

Highest-spending 25% of counties

95%

Plans in high-quality-rated counties (generally 4 stars or higher) can receive an additional bonus on top of this — typically a 5 percentage point increase to the benchmark, or more in certain “double bonus” counties that combine low costs with high Medicare Advantage enrollment.

Where the extra benefits actually come from: the rebate

Here’s the mechanism that connects all of this to your dental coverage and $0 premium: insurers submit a bid for what they believe it will actually cost to cover a county’s members. If that bid comes in below the county’s benchmark, CMS pays the insurer a rebate equal to a share of the difference — and by law, that rebate money has to go back to consumers in the form of reduced premiums, lower cost-sharing, or extra benefits like dental, vision, and over-the-counter allowances.

This is exactly why plan richness tracks so closely with county-level funding. A high-cost urban county with a large benchmark generates large rebate dollars, which insurers turn into loaded-up plans with dozens of extra perks. A lower-spending rural county, even with its 115% boost, often produces a smaller absolute rebate in real dollars — simply because the underlying spending baseline is so much lower to begin with.

Paul’s Honest Take: I bring this up constantly with clients who ask why their sister in Florida has 80 plans to choose from with all kinds of extras, while they’re looking at a dozen bare-bones options in a rural county. It’s not that insurers like Florida seniors more — it’s that the federal funding math in high-cost counties generates bigger rebate dollars, which insurers are required to convert into consumer benefits. This is also exactly why comparing your plan against what a friend or family member has in a different state or county rarely tells you anything useful about your own options.

Beyond the funding formula: market economics and provider leverage

A few other forces reinforce this same pattern:

  • Population density. Large national carriers can justify building overlapping HMO, PPO, and specialty plan networks in dense urban counties because there are enough eligible seniors concentrated in a small area to make it worthwhile. A sparse, spread-out rural population makes that same administrative investment much harder to justify.
  • Provider negotiating leverage. In a metro area with many competing hospital systems, insurers can negotiate lower contracted rates, which improves their margin and their ability to fund richer benefits. In a rural county served by a single dominant hospital system, that hospital holds real pricing leverage, which can push costs up and make the county less attractive for insurers to build competitive plans in.

Paul’s Honest Take: All of this adds up to a genuinely uneven map — and it’s worth knowing this isn’t random or a reflection of your worth as a Medicare beneficiary. It’s math, funding formulas, and market structure. If you’re in a lower-benefit county, understanding why can at least take some of the mystery out of a frustrating comparison shopping experience — and it’s exactly why checking your specific county’s actual plan lineup matters so much more than trusting a national commercial or a friend’s experience somewhere else.

“But My Sister Has Humana Too, and Hers Is Better”

This is one of the most common conversations I have, and it trips people up because it feels like it shouldn’t be true: two people, same insurance company, same brand name on the card — and genuinely different coverage. Here’s why that happens.

A single carrier like Humana, UnitedHealthcare, or Aetna doesn’t sell one nationwide plan. They sell dozens, sometimes hundreds, of separate plans across the country, each filed with CMS as its own distinct “contract” tied to a specific set of counties. Two plans can carry the exact same brand name and still be entirely different products, because:

  • The county funding benchmark is different. As covered above, the same carrier operating in a high-benchmark county can afford to build a richer plan there than in a lower-benchmark county — even under the identical brand name.
  • The network is local, not national. “Humana” in your sister’s county may have negotiated a completely different set of hospitals and doctors than “Humana” in yours, because provider networks are built county by county, not company-wide.
  • The specific plan (and its benefits) is filed separately. Even within the same county, a carrier often offers several different plans side by side — a leaner $0 plan and a richer one with a small premium, for example — and “Humana” alone doesn’t tell you which version someone actually has.
  • Star ratings are assigned per contract, not per company. One Humana contract in one region can carry a 4.5-star rating while a different Humana contract somewhere else carries a 3-star rating, because CMS rates each contract’s actual performance, not the parent company as a whole.

Paul’s Honest Take: When a client tells me “my brother has Humana and he loves it, so I want that too,” I always ask the same follow-up: which Humana plan, exactly, and in which county? The brand name on the card tells you almost nothing on its own — it’s simply the corporate logo sitting on top of a specific plan, built for a specific county, with its own specific network, formulary, and benefits. Two people with the same insurance company’s name on their card can be on completely different plans in every way that actually matters. This is exactly why I always compare the actual plan document — not the company name — before recommending anything.

Enrollment Suppression: When Carriers Try to Shed Members

Here’s a genuinely important, less-discussed development that’s directly connected to the capitation and rebate mechanics above, and it’s worth understanding clearly if you’re on Medicare Advantage or thinking about it: because insurers bear real financial risk under capitation, some carriers have begun actively working to reduce enrollment in plans that turn out to be unprofitable — particularly among members likely to need expensive care.

This isn’t a fringe claim — it’s been reported extensively by industry data firms, healthcare trade press, and consumer advocates over the past couple of enrollment seasons. It generally shows up in a few specific ways:

  • Cutting or eliminating broker commissions on specific plans. If an agent isn’t paid to enroll someone in a particular plan, there’s a real financial disincentive to steer clients toward it — even if it might otherwise fit them well. Industry data has shown carriers cutting commissions on somewhere between 15% and 20% of plans in a recent enrollment season.
  • Outright enrollment suppression. In some documented cases, agents have reported being unable to enroll a client in a specific plan at all — the plan effectively closed to new members through the agent’s enrollment system, even though it technically remained on the market.
  • Reducing benefits or exiting counties entirely, which pushes existing higher-cost members to shop elsewhere during the next Annual Enrollment Period rather than staying on a plan the carrier no longer wants to keep filling with claims.

Why this happens: under the capitation model, a carrier’s profit depends heavily on managing costs relative to what CMS pays them per member. A plan that attracts a disproportionately expensive, high-need population can become a genuine financial liability for the carrier — creating a real incentive to make that specific plan less attractive to shop for, rather than simply raising its price for everyone.

How the Suppression Actually Happens, Step by Step

Because federal rules flatly prohibit an insurer from simply refusing a valid applicant, carriers rely on operational friction instead — tactics that are legal on their face but function to quietly choke off enrollment:

  • Cutting commissions to zero on specific plans. When an agent is paid nothing to enroll someone in a particular plan, there’s a real financial disincentive to present it — even to a client it might genuinely fit — and volume dries up on its own without the carrier ever technically refusing anyone.
  • Shutting off digital enrollment tools. Some carriers have temporarily disabled the online portals and instant-quoting systems agents rely on for a specific plan, cutting off the fast, high-volume enrollment pipeline.
  • Forcing paper applications. When digital pathways go dark, agents and consumers are sometimes pushed back to long, multi-page paper forms that must be mailed or faxed — friction that slows processing and drives up abandonment.
  • Direct plan termination or market exit. Rather than subtle friction, carriers increasingly take the more direct route: simply discontinuing an unprofitable plan or pulling out of a county entirely, which forces every enrollee in that plan to find new coverage regardless of how satisfied they were.

The Scale of This Has Become Genuinely Significant

This isn’t a marginal issue anymore. A peer-reviewed study published in JAMA in February 2026, from researchers at Johns Hopkins Bloomberg School of Public Health and Georgetown University, found that roughly 10% of all Medicare Advantage enrollees in individual HMO and PPO plans — about 2.9 million people — faced forced disenrollment for 2026 when their carrier exited their county or terminated their specific plan. For context, that forced disenrollment rate averaged just 1% annually from 2018 through 2024, before jumping to 6.9% in 2025 and 10% in 2026 — a genuinely dramatic and sudden shift.

The impact wasn’t spread evenly. Beneficiaries in rural areas, smaller carriers, and lower-star-rated plans were disproportionately affected. In several states — including Vermont, Idaho, Wyoming, North Dakota, South Dakota, Maryland, and New Hampshire — at least 40% of Medicare Advantage enrollees were forced to find new coverage for 2026. Vermont was the most extreme case, with roughly 92% of the state’s Medicare Advantage enrollees forced to disenroll after insurers largely abandoned the market there.

Regulators are watching this closely. The HHS Office of Inspector General has added “Medicare Advantage enrollment manipulation schemes” to its active oversight work plan, specifically examining whether carriers are structuring agent incentives or administrative hurdles to deliberately discourage enrollment from higher-risk individuals or choke off enrollment in specific areas.

Paul’s Honest Take: This is one of the more uncomfortable truths in this industry, and I think consumers deserve to know it plainly: a carrier’s interests and your interests aren’t always perfectly aligned, especially once you become a member they’d rather not have anymore. This is also exactly why I keep coming back to the same point throughout everything I write: work with an agent who represents many carriers and has a real, ongoing relationship with you — not just the one who happened to get paid to enroll you. If your plan changes benefits, cuts your network, or otherwise starts looking less appealing, that’s worth investigating as a potential signal, not just an annoyance to shrug off. And if your plan is terminated outright, know that you’re not without options — a plan termination generally triggers a Special Enrollment Period, and in many cases, a guaranteed issue right to a Medigap policy without medical underwriting. Review your plan every single AEP, regardless of how satisfied you were the year before.

One important note before moving on: it would be a mistake to read all of this and conclude that Medicare Advantage is uniquely guilty of protecting its own profits at consumers’ expense, while Medigap is simply the safe, honest alternative. It isn’t that simple. Medigap carriers have their own version of the same underlying instinct — they just express it differently, through pricing and commission structure rather than plan terminations. The next section covers exactly how.

Medigap Isn’t Immune Either: Teaser Rates and the Commission Problem

It’s worth being just as honest about the other side of the industry, because Medigap carriers use a version of the same playbook, just with different mechanics — and because most people don’t have perfect health, which makes this genuinely consequential.

The Teaser Rate Problem

Some Medigap carriers have priced their plans aggressively low when entering a market or attracting new members — sometimes well below what claims experience would actually justify — specifically to win market share quickly. Once those members are locked in, rates can rise sharply and repeatedly to correct course. Brokers and journalists have documented cases of Medigap rate increases as high as 45% in a single year from carriers that had priced aggressively to grow quickly.

Here’s what makes this genuinely different from a Medicare Advantage plan simply raising its premium: most Medigap policyholders don’t have perfect health. Switching to a different Medigap carrier later, outside your original enrollment window, generally means facing medical underwriting in most states — and if your health has changed since you first enrolled, a lower-priced competitor may simply decline to take you, or charge you more than the increase you’re trying to escape. That traps a real number of people paying a steeply rising premium with genuinely limited ability to shop their way out of it, depending entirely on which state they live in.

Paul’s Honest Take: This is exactly why I tell every Medigap client the same thing: the quoted premium on day one is only half the story. A company’s rate increase history matters just as much as its starting price, and it’s something an experienced independent agent can actually show you — most people never think to ask for it. If you’re in a state without New York’s continuous enrollment protection, a low introductory rate that later spikes can leave you with very few real options, especially if your health has changed. I’d rather steer a client toward a company with a track record of smaller, steadier increases than one with the flashiest rate today.

The Guaranteed Issue Commission Problem

Here’s a detail that connects directly back to the Medicare Advantage forced disenrollment issue above, and it’s worth understanding because of how it can shape the advice you get: when a Medicare Advantage plan is terminated or exits the market, affected members typically gain a guaranteed issue right to enroll in a Medigap policy without medical underwriting. That’s genuinely good news for the consumer.

But not every Medigap carrier pays agents a full commission — or any commission at all — for guaranteed issue enrollments. Because the carrier is legally required to accept these applicants regardless of health status, some carriers treat guaranteed issue business as less profitable to originate and compensate agents accordingly. This creates the same structural tension as Medicare Advantage commission cuts: an agent who isn’t fairly compensated for a specific type of enrollment has a real financial disincentive to actively help with it, even when it’s exactly the right move for the client.

Why This Happens: Unregulated Commissions and “Adverse Selection”

Here’s the mechanical reason this gap exists. Medicare Advantage agent commissions are strictly capped by CMS — every carrier has to work within the same federal maximum. Medigap commissions are not regulated this way at all. They’re negotiated independently between each carrier, agency, and Field Marketing Organization, which means there’s real variation in how — and how much — agents get paid from one company to the next.

For a standard, medically underwritten Medigap application, independent agents typically earn an annualized commission in the range of 18% to 22% of the premium for roughly the first six years. Guaranteed issue business frequently shifts to a very different structure:

  • Some carriers pay $0 — a flat zero commission for any guaranteed issue enrollment.
  • Some pay a one-time flat service fee instead of an ongoing percentage — commonly in the range of $25 to $50 total, rather than a recurring share of the premium.
  • Some pay a severely reduced percentage — often just 2% to 5%, a fraction of the standard rate.

The reasoning from the carrier’s side: because guaranteed issue applicants bypass medical underwriting entirely, the insurer has no visibility into their health history. Someone transitioning off a collapsing or exiting Medicare Advantage plan may statistically be more likely to have real, immediate medical needs — what insurers call adverse selection. Carriers are reluctant to financially reward agents for actively bringing in business they view as higher-risk and effectively involuntary, rather than something the agent generated through their own marketing effort.

The New York twist: because New York already mandates year-round guaranteed issue for every Medigap enrollment — not just plan-termination scenarios — carriers operating here can’t structure a “regular vs. guaranteed issue” commission split the way carriers do in most other states. Instead, many carriers selling Medigap in New York simply build a lower, flat baseline commission into their entire New York book of business from the start, since every single enrollment here effectively carries the adverse-selection risk that triggers a commission cut elsewhere.

Paul’s Honest Take: I bring this up because it’s a genuine test of whether an agent is actually working for you. If your Medicare Advantage plan gets terminated and you have a guaranteed issue right into Medigap, that’s valuable protection you’re entitled to — full stop, regardless of what it pays the agent helping you use it. This is exactly the kind of moment where working with someone who’s in this for the long-term relationship, not the single transaction, actually matters. Ask directly whether a commission difference is shaping the recommendation you’re getting.

What’s Bundled Into a Single Plan

A typical Medicare Advantage plan combines:

  • Part A (hospital coverage)
  • Part B (medical coverage)
  • Part D (prescription drug coverage), in most plans
  • Extra benefits Original Medicare is legally prohibited from covering

That last point is worth sitting with. Original Medicare and Medigap are barred by federal law from covering routine dental, vision, hearing, or lifestyle benefits like gym memberships. Medicare Advantage plans can offer these because the government funds them through the capitation payment, and private insurers use them as a competitive draw to attract members. Common extras include:

  • Dental, vision, and hearing — routine cleanings, eyeglass allowances, hearing aid coverage
  • Over-the-counter allowances — a quarterly or monthly credit for items like vitamins and basic health supplies
  • Fitness benefits — free access to gym networks like SilverSneakers

The Standard Plan Types

  • HMO (Health Maintenance Organization): You select a primary care doctor and generally need a referral to see a specialist. Care is restricted to the plan’s network except in emergencies.
  • PPO (Preferred Provider Organization): More flexibility to see out-of-network providers, usually at a higher cost, with no referrals typically required.
  • Special Needs Plans (SNPs): Restricted to specific groups — people with certain chronic conditions (C-SNPs), residents of nursing facilities (I-SNPs), or people dual-eligible for both Medicare and Medicaid (D-SNPs).

(Our [complete Medicare Advantage guide] covers HMO-POS and PFFS variants, plan quality ratings, and how to choose between plan types in much more depth.)

The Financial Breakdown

Cost Element

How It Works

Monthly premium

Often 0,thoughyoualwayscontinuepayingyourstandardPartBpremium(202.90 in 2026)

Cost-sharing structure

Fixed copays (e.g., $15 for a primary care visit, $35–50 for a specialist) instead of Original Medicare’s 20% coinsurance

Maximum Out-of-Pocket (MOOP)

A legally required annual cap — commonly in the 3,500–8,800 range depending on the plan — after which the plan covers 100% of your remaining covered costs for the year

Paul’s Honest Take: The predictable copay structure is genuinely one of the most appealing things about Medicare Advantage for a lot of people — you generally know what a doctor visit or an ER trip will cost before you go, instead of doing math on 20% of an unknown total. That predictability, paired with the legally required MOOP cap, is the core financial argument for Medicare Advantage. Just remember that predictable isn’t the same as free — those copays add up, and the MOOP cap, while real protection, can still mean thousands of dollars in a bad year.

Why About Half of All Beneficiaries Choose It

There are a few clear, honest reasons Medicare Advantage has grown to cover roughly half of all Medicare-eligible Americans:

  1. Lower upfront monthly cost. Choosing Original Medicare with a Medigap policy and a standalone Part D plan means stacking multiple private premiums on top of your Part B premium — often $3,000 to $5,000 or more per year in guaranteed premiums, depending on your state and age. A $0-premium Medicare Advantage plan is an obvious, immediate savings for someone on a fixed income, even knowing copays will apply later.
  2. The extra benefits. Dental, vision, hearing, and fitness perks that Original Medicare and Medigap simply cannot offer by law.
  3. One card instead of three. The traditional route means carrying a Medicare card, a separate Medigap card, and a separate Part D card. Medicare Advantage consolidates everything into a single private insurance card.
  4. It can genuinely make sense for healthy people. Someone who rarely sees a doctor may reasonably conclude that paying a high monthly Medigap premium doesn’t make financial sense if they’d only occasionally pay a small copay instead.

Paul’s Honest Take: All four of these reasons are legitimate, and I don’t dismiss any of them with clients. But “makes sense for a healthy person today” and “will still make sense if your health changes” are two different questions — and that second one is exactly why understanding your full range of options, before you’re locked into a decision, matters so much.

The New York Exception

In most states, choosing Medicare Advantage at 65 comes with a real risk if you ever want to switch to Medigap later: outside your original enrollment window, insurers can generally ask health questions and decline or upcharge you based on your health history.

New York doesn’t work that way. Because New York requires continuous, year-round Medigap enrollment with community rating, New Yorkers have a genuinely unique option: start on a lower-cost Medicare Advantage plan, and if your needs or preferences change later, switch to a comprehensive Medigap plan without medical underwriting, at any point. (Our [Medicare in New York guide] covers this in full detail, including the real tradeoff of higher Medigap premiums that comes with this flexibility.)

Paul’s Honest Take: This is a genuinely strategic advantage unique to a small handful of states, and it changes the calculus for New Yorkers in a way that doesn’t apply almost anywhere else in the country. It’s one of the first things I bring up with New York clients weighing Medicare Advantage against Medigap, because it removes some of the risk that makes this decision so high-stakes in most of the country.

Has Medicare Advantage Actually Saved the Government Money? A Genuinely Contested Question

The original policy goal behind Part C was to save the government money by leveraging private-sector efficiency. This is where the story gets more complicated, and it’s worth understanding both sides fairly, since it’s an actively debated topic in Washington.

The Medicare Payment Advisory Commission (MedPAC) — an independent agency that advises Congress — estimates that in 2026, the government will pay Medicare Advantage plans about 14% more ($76 billion) than it would cost to cover those same beneficiaries under Original Medicare. MedPAC attributes this gap to a few factors, including “upcoding” (diagnostic coding that can make patients appear sicker, and therefore more expensive to insure, than they actually are) and favorable selection (enrolling beneficiaries who are healthier than the risk-adjustment formula assumes).

The insurance industry and some researchers push back on these estimates, arguing MedPAC’s methodology doesn’t fully account for genuine differences between the Medicare Advantage and Original Medicare populations, and that industry-funded research shows real value and efficiency in Medicare Advantage’s outcomes and data quality.

Paul’s Honest Take: I’m not going to pretend this is a settled question, because it genuinely isn’t — you’ll find credible voices on both sides, and it’s an active policy fight in Washington involving billions of dollars. What I do think is worth knowing as a consumer: some recent analysis has connected these overpayments to rising Part B premiums for everyone, including people who aren’t even enrolled in Medicare Advantage, since Part B premiums are set to cover a share of overall Medicare spending. Whatever your view on the policy debate, it’s a genuinely interesting piece of context for understanding why this program looks the way it does and why it remains such a hot topic in Congress.

Medicare Advantage vs. ACA Marketplace Plans: Not the Same Thing

Since both rely on private insurers managing networks of local doctors, people sometimes conflate Medicare Advantage with ACA Marketplace (“Obamacare”) plans. They’re built for entirely different purposes:

Feature

Medicare Advantage

ACA Marketplace Plans

Who’s eligible

Age 65+, or under 65 with a qualifying disability

Generally adults under 65 without employer or government coverage

Premium structure

Many $0-premium options; you still pay Part B

Premium scales by age, tobacco use, location, and income; tax credits can lower cost

Required coverage

Must cover at least what Original Medicare covers

Must cover the 10 Essential Health Benefits, including maternity and pediatric care

Typical extras

Dental, vision, hearing, fitness perks

Adult dental/vision generally require separate riders

Paul’s Honest Take: If you’re transitioning from an ACA Marketplace plan onto Medicare as you approach 65, it’s worth knowing these aren’t just two flavors of the same thing — they’re built around completely different populations and completely different rules. Timing that transition correctly matters, since ACA coverage doesn’t create a Medicare enrollment exception the way active employer coverage can.

Frequently Asked Questions

Is Medicare Part C the same as Medicare Advantage? Yes — “Part C” is the official government name, and “Medicare Advantage” is the commercial name that’s been used since 2003. They refer to the exact same program.

How is Medicare Advantage funded differently from Original Medicare? The government pays private insurers a fixed monthly amount per enrolled member (capitation), shifting financial risk onto the insurance company, rather than paying providers directly for each service the way Original Medicare does.

Why do Medicare Advantage plans offer dental and vision when Original Medicare doesn’t? Federal law prohibits Original Medicare and Medigap from covering routine dental, vision, and similar lifestyle benefits. Medicare Advantage plans can offer them using the capitation funding they receive, and use these extras to attract members.

Does Medicare Advantage actually save the government money? This is genuinely disputed. MedPAC, an independent congressional advisory agency, estimates Medicare Advantage costs the government about 14% more per enrollee than Original Medicare would in 2026. The insurance industry disputes aspects of this methodology. It remains an active policy debate.

Can I switch from Medicare Advantage to Medigap later if I change my mind? It depends on your state. In most states, switching later can mean facing medical underwriting and a higher price or denial. New York is a notable exception, with continuous, year-round Medigap enrollment that removes this risk.

Why does my county have so many fewer Medicare Advantage plans than a friend’s in another state? Plan availability and richness track closely with each county’s CMS funding benchmark, which is based on historical Original Medicare spending there. Higher-spending counties generate bigger rebate dollars for insurers, which get converted into more plans and richer extra benefits. Lower-spending counties, even with a funding boost, typically produce smaller rebates and fewer, leaner plan options.

My sibling has the same insurance company as me, so why is their plan better? The brand name alone doesn’t tell you much. Carriers like Humana or UnitedHealthcare sell many separate plans across different counties, each with its own network, formulary, benefits, and star rating filed as a distinct contract with CMS. Two people with the same company’s name on their card can have genuinely different coverage depending on their specific plan and county.

Do insurance companies try to get rid of Medicare Advantage members? Yes, this is a documented, widely reported practice. Carriers have cut broker commissions, disabled digital enrollment tools, forced paper applications, and directly terminated unprofitable plans to reduce membership likely to need expensive care. A 2026 JAMA study found roughly 10% of Medicare Advantage enrollees faced forced disenrollment for 2026, up from an average of just 1% annually from 2018–2024.

Do Medigap companies do something similar? In a different way, yes. Some Medigap carriers price plans aggressively low to attract new members, then raise rates sharply once those members are effectively locked in — a practice sometimes called a “teaser rate.” Because most people don’t have perfect health, switching carriers later often means facing medical underwriting, which can trap policyholders paying steep increases with limited ability to shop elsewhere.

If my Medicare Advantage plan is terminated, can I get a Medigap policy without health questions? Generally yes — plan terminations typically trigger a guaranteed issue right to enroll in a Medigap policy without medical underwriting. Be aware that not all Medigap carriers pay agents full commission on guaranteed issue business — some pay a flat low fee or nothing at all — which can affect how actively some agents help with it. In New York, this dynamic works differently: since every Medigap enrollment here is already year-round guaranteed issue by state law, carriers typically build a lower flat commission into their entire New York business rather than singling out guaranteed issue applicants specifically.

The Bottom Line

Medicare Advantage exists because Congress wanted to bring private-sector competition into Medicare, betting it would save money and give beneficiaries more modern coverage options. It’s succeeded at the second goal — consumers genuinely like the low premiums, bundled extras, and simplicity, and roughly half the country has voted with their enrollment. Whether it’s succeeded at the first goal is a real, ongoing argument among policy experts. As a consumer, what matters most isn’t who wins that argument — it’s understanding the actual tradeoff you’re making: predictable, lower costs and extra benefits, in exchange for a private network and active care management, instead of Original Medicare’s open access and uncapped 20% coinsurance.

One more thing worth carrying forward from this guide: neither path through Medicare — Medicare Advantage nor Medigap — is immune to carriers protecting their own bottom line in ways that don’t always serve you. Medicare Advantage plans do it through enrollment suppression and plan terminations; Medigap carriers do it through teaser pricing and uneven commission structures. Knowing both patterns exist, on both sides of this decision, is exactly what lets you evaluate either path clearly instead of assuming one is simply the “safe” choice and the other isn’t.

If you want help thinking through whether Medicare Advantage or Original Medicare with Medigap actually fits your specific doctors, medications, and budget, that’s exactly the conversation I have with clients every day, at no cost to you.

Call 631-358-5793 or visit paulbinsurance.com to set up a time to talk it through.

Paul Barrett, CMIP, is the founder of The Modern Medicare Agency, based in Melville, NY, and has spent 18+ years exclusively helping people navigate Medicare — never life insurance, never annuities, just Medicare. He’s licensed in 37 states, represents more than 40 carriers, and has personally helped over 5,000 clients choose coverage that actually fits their lives.

Figures current as of 2026 and sourced from CMS, MedPAC, and independent policy research. The Medicare Advantage overpayment debate reflects ongoing, contested policy analysis — we’ve presented multiple perspectives rather than a single conclusion. Individual plan costs and benefits vary by carrier and county — always verify specific plan details for your ZIP code at Medicare.gov before enrolling.

Sources

What Is Medicare Part B and What Does It Actually Cover?

The complete guide to Medicare’s medical insurance — every service it covers, exactly what it costs in 2026, how it works with group insurance and VA benefits, and the excess charges most people have never heard of until they get a surprise bill.

The Short Answer

Medicare Part B is medical insurance — it covers doctor visits, outpatient care, preventive services, durable medical equipment, and more. Unlike Part A, Part B is not premium-free for anyone: everyone pays a monthly premium (202.90in2026formostpeople),anannualdeductible(283), and 20% coinsurance on most covered services, with no yearly cap on that 20% under Original Medicare alone. Whether you need to enroll at 65, and whether delaying is safe, depends heavily on your employment status and your employer’s size — getting this wrong is one of the most consequential and permanent mistakes in all of Medicare.

Key Takeaways

  • Part B is never premium-free — everyone pays a monthly premium, and higher earners pay significantly more through IRMAA.
  • The 20% coinsurance under Original Medicare alone has no yearly cap — this is the single biggest financial risk in Medicare, and it’s the reason Medigap and Medicare Advantage exist.
  • Whether you can safely delay Part B without a penalty depends on your employer’s size: 20+ employees generally allows delay; fewer than 20 generally does not.
  • Missing your enrollment window triggers a permanent 10% penalty for every 12-month period you went without coverage.
  • Veterans can and generally should enroll in Part B even with VA benefits, since Medicare and VA coverage don’t coordinate — each only pays for care received within its own system.
  • “Excess charges” from non-participating providers can add up to 15% on top of what Medicare approves, and only some Medigap plans protect you from them.

What Part B Actually Covers

While Part A handles hospital room and board, Part B is the half of Original Medicare that covers medical care and most services delivered outside a hospital admission — doctor visits, outpatient procedures, and ongoing medical needs.

What’s covered

  • Doctor visits — primary care and specialists
  • Outpatient surgeries and procedures
  • Diagnostic lab work, X-rays, and MRIs
  • Emergency room visits
  • Ambulance services
  • Outpatient mental health care
  • Physical, occupational, and speech therapy
  • Chemotherapy and radiation received in an outpatient clinic
  • Durable Medical Equipment (DME) — wheelchairs, oxygen equipment, blood sugar monitors, walkers, and similar equipment
  • Ambulatory surgical center services

Preventive services: the part Medicare gets genuinely right

Most preventive services are covered at 100%, with no deductible and no copay, as long as your provider accepts Medicare assignment. This includes:

  • Your one-time “Welcome to Medicare” wellness visit, available within your first 12 months on Part B
  • Annual wellness visits after that
  • Flu shots and most other recommended vaccines
  • Mammograms
  • Colonoscopies and other cancer screenings
  • Diabetes and cardiovascular screenings
  • Many other screenings recommended by the U.S. Preventive Services Task Force

Paul’s Honest Take: This is one of the most underused parts of Medicare, full stop. I’ve had clients who paid for a private physical every year out of habit and never realized their annual wellness visit through Medicare was completely free. If you haven’t used your Welcome to Medicare visit or your annual wellness visit, that’s real value sitting on the table.

What’s NOT covered

  • Routine dental care — cleanings, fillings, dentures, extractions
  • Routine vision exams and eyeglasses
  • Hearing aids (though diagnostic hearing tests ordered by a doctor may be covered)
  • Long-term custodial nursing home care — help with daily living activities, as opposed to short-term skilled or medical care
  • Routine prescription drugs you pick up at a retail pharmacy — that’s Part D’s job, not Part B’s
  • Cosmetic surgery, unless medically necessary (such as reconstruction after an accident or mastectomy)
  • Most care received outside the United States, with very limited exceptions
  • Routine foot care, such as nail trimming, in the absence of a qualifying medical condition
  • Acupuncture, except for a narrow, specific chronic low back pain benefit
  • Concierge medicine fees and membership-style charges some practices add on top of standard care
  • Long-term care insurance-style services, including most home-based personal care that isn’t tied to a skilled medical need

Paul’s Honest Take: The dental and vision exclusions are the ones that surprise people most, especially since they’re such routine parts of healthcare for most adults. This is exactly why so many Medicare Advantage plans build dental, vision, and hearing benefits into their coverage — Original Medicare was simply never designed to include them, and that gap doesn’t go away on its own.

What Part B Costs in 2026

Part B has three separate cost components, and understanding all three matters:

Cost Component

2026 Amount

Standard monthly premium

$202.90

Annual deductible

$283

Coinsurance on most covered services

20%

The premium is deducted automatically from your Social Security check if you’re already collecting benefits. If you’re not yet collecting Social Security, you’ll receive a bill, typically every three months.

The deductible works differently than Part A’s — it’s a straightforward annual figure. You pay the first $283 of Medicare-approved outpatient costs each calendar year, and then Medicare’s cost-sharing kicks in.

The coinsurance is where the real risk lives. After your deductible is met, Medicare pays 80% of the Medicare-approved amount for most covered services, and you’re responsible for the remaining 20%. There is no yearly cap on this 20% under Original Medicare alone. If you have a $100,000 course of cancer treatment, your 20% share is $20,000 — unless you have a Medigap policy or Medicare Advantage plan absorbing that cost.

Paul’s Honest Take: I put this in bold because it’s genuinely the single most important number in this entire guide. That uncapped 20% is the whole reason Medigap and Medicare Advantage exist as products in the first place. Original Medicare by itself was never designed to protect you from a truly expensive year — it was designed to cover 80% of it and leave the rest to you.

IRMAA: What Higher Earners Actually Pay

If your income is above certain thresholds, you’ll pay more for Part B through the Income-Related Monthly Adjustment Amount (IRMAA) — based on your tax return from two years prior. For 2026, that means your 2024 income determines your premium tier.

2024 Income (Individual)

2024 Income (Married, Joint)

Total Part B / Month

$109,000 or less

$218,000 or less

$202.90

$109,001 – $137,000

$218,001 – $274,000

$284.10

$137,001 – $171,000

$274,001 – $342,000

$405.80

$171,001 – $205,000

$342,001 – $410,000

$527.50

$205,001 – $499,999

$410,001 – $749,999

$649.20

$500,000 and above

$750,000 and above

$689.90

At the top tier, you’re paying more than three times the standard premium. If your income has recently dropped — retirement, the loss of a spouse, or certain other life-changing events — you can appeal your IRMAA determination using Form SSA-44.

Do You Have to Enroll? And What Happens If You Don’t?

Technically, Part B is optional — Medicare won’t force you into it. But opting out without a valid alternative is genuinely risky, because of how the penalty structure works.

If you don’t sign up during your Initial Enrollment Period (the 7-month window around your 65th birthday) and you don’t have qualifying employer coverage, you’ll face a permanent 10% penalty added to your premium for every full 12-month period you went without Part B. That penalty doesn’t expire — you pay it for as long as you have Part B, which for most people means for the rest of your life.

Example: If you delayed enrollment by 24 full months without a valid exception, you’d pay an extra 20% on top of the standard $202.90 premium in 2026 — roughly $40.58 more, every month, permanently.

How Part B Works with Group Insurance

Just like Part A, whether you can safely delay Part B without penalty comes down to one specific number: how many employees your company has.

Companies with 20 or more employees: If you or your spouse are actively working and covered by a genuine group health plan, your workplace insurance is primary, and you can legally delay Part B without any penalty. When that employment or coverage eventually ends, you get an 8-month Special Enrollment Period to enroll in Part B penalty-free.

Companies with fewer than 20 employees: Medicare automatically becomes your primary insurer at 65, regardless of your employment status. You need to enroll in Part B right on schedule. If you don’t, your small employer’s plan can legally refuse to pay claims that Medicare should have covered first — potentially leaving you responsible for the full cost.

Paul’s Honest Take: I say this in nearly every guide I write, because it’s genuinely one of the costliest misunderstandings I encounter: “I have good coverage at work” and “I’m protected from Medicare’s enrollment deadlines” are two completely different statements, and whether the second one is true depends entirely on your employer’s size — not how generous the coverage feels. Confirm the actual employee count before you decide to delay anything.

Retiree Coverage Is Not the Same as Active Employer Coverage

This is a distinction that catches a genuinely large number of people off guard: the “20 or more employees” exception only applies to active employment. If you retire and your former employer offers you retiree health benefits — sometimes a genuinely good, comprehensive plan — that coverage does not create a Special Enrollment Period the way active group coverage does, and it does not exempt you from enrolling in Part B on time.

Paul’s Honest Take: I’ve seen this mistake more than once, and it’s an especially painful one because it happens to people who did everything right during their working years. Someone retires with a strong retiree health plan from a large employer, assumes it works the same way their active coverage did, and delays Part B — only to find out later that retiree coverage was never a valid reason to delay in the first place. The moment you stop actively working, that clock starts, regardless of how good your retiree plan looks on paper. If you’re retiring and keeping employer retiree benefits, treat enrolling in Part B as something to handle right on schedule, not something retiree coverage lets you postpone.

Why You Need Both Part A and Part B for Medigap or Medicare Advantage

Here’s a foundational requirement worth understanding clearly, since it shapes every other coverage decision in Medicare: you must be enrolled in both Part A and Part B before you can buy a Medigap policy or enroll in a Medicare Advantage plan. Neither product exists as a standalone substitute for Original Medicare — both are built specifically to work alongside it.

  • Medigap fills the cost-sharing gaps left by Original Medicare (Parts A and B) — it has nothing to fill in if you’re not enrolled in both parts to begin with.
  • Medicare Advantage legally must provide at least the same coverage as Parts A and B combined, which is only possible because you’re required to be enrolled in both before a Medicare Advantage carrier can enroll you.

Paul’s Honest Take: This surprises people who assume they can somehow “skip” Part B and go straight into a Medicare Advantage plan to avoid the extra premium. It doesn’t work that way — Part B enrollment, and its premium, is a prerequisite either way, whether you end up on Original Medicare with Medigap or on a Medicare Advantage plan. There’s no path through Medicare that avoids the Part B premium once you’re actually using the system.

Does Medicare Work If You’re a Veteran?

Yes — and if you have VA health benefits, understanding how the two systems relate is genuinely important, because they work differently than most people assume.

Medicare and VA benefits do not coordinate. These are two entirely separate systems that each pay only for care received within their own network. Medicare doesn’t pay for care you receive at a VA facility, and VA benefits don’t pay for care you receive from a non-VA doctor or hospital. You, the veteran, choose which system to use each time you seek care.

Here’s the critical point: having VA benefits does not exempt you from Medicare’s enrollment deadlines. VA coverage is not considered a qualifying reason to delay Part B without penalty. If you don’t enroll in Part B during your Initial Enrollment Period and you’re relying solely on VA benefits, you can still trigger the permanent late enrollment penalty.

Why the VA itself recommends enrolling in Medicare anyway:

  • It gives you access to civilian doctors and hospitals outside the VA system
  • VA healthcare funding depends on annual Congressional appropriations, which isn’t guaranteed to remain stable
  • If VA authorizes only part of your needed care at a non-VA facility, Medicare can help cover the rest
  • Having both gives you meaningfully more flexibility and security than relying on either system alone

Paul’s Honest Take: This is one of the most common misconceptions I run into with veterans specifically, and it’s an expensive one to get wrong. Good VA coverage feels like it should be enough, and it might genuinely handle most of your care — but it doesn’t protect you from the Part B enrollment clock the way employer coverage from a large company can. The VA itself actively encourages enrolling in Medicare Parts A and B for exactly this reason. If you have VA benefits and are approaching 65, this is worth a direct conversation before you assume you’re covered.

Veterans who enroll in Part B can also purchase a Medigap policy, which can be particularly valuable if you use non-VA providers regularly — though if you primarily rely on VA facilities for most of your care, the value of an added Medigap policy may be more limited, and worth weighing carefully.

How Long Does It Actually Take to Get Part B Approved?

This is one of the most practical, and most overlooked, pieces of planning — especially if you’re leaving a job after 65 and coordinating your Part B start date around the end of your employer coverage. Applying isn’t instant, and the timeline depends heavily on which enrollment window you’re using.

Enrollment Situation

Typical Processing Time

When Coverage Actually Starts

Initial Enrollment Period (around 65)

2–4 weeks, sometimes up to 6

1st of your birthday month (if applied in the 3 months before) or 1st of the month after you apply (if applied during or after your birthday month)

Special Enrollment Period (leaving employer coverage)

4–8 weeks, sometimes longer

1st of the month after your application is submitted

General Enrollment Period (Jan 1–Mar 31, missed window)

4–6 weeks

1st of the month after you apply

Why the Special Enrollment Period takes longer: applying after leaving employer coverage requires two forms, not one — Form CMS-40B (the actual Part B application) and Form CMS-L564 (Request for Employment Information), which your employer needs to complete to verify you had qualifying coverage. Social Security has to manually review both, which is exactly why this route consistently takes longer than a standard Initial Enrollment Period application.

Paul’s Honest Take: This timeline question comes up constantly with clients who are retiring or leaving a job after 65, and it deserves real attention — not just because of the penalty risk we’ve already covered, but because a slow approval can leave you with an actual gap in coverage if you time it too tightly. My standard advice: start this process at least 2 to 3 months before you need Part B to actually begin, not the week your employer coverage ends. If your former employer is slow to complete their portion of Form CMS-L564, that alone can hold up the entire application — so it’s worth following up with your HR or benefits department directly rather than assuming it’s been submitted.

Practical tips to avoid delays

  • Apply online through SSA.gov whenever possible. It’s consistently the fastest method — mailed or faxed forms are more prone to getting lost or delayed.
  • If you’re on a Special Enrollment Period, submit Form CMS-L564 alongside Form CMS-40B, not separately. They need to arrive together, and one incomplete form can stall the whole application.
  • Expect a short intake lag even with online applications. It can take several business days for an online submission to actually appear on a local Social Security agent’s screen — don’t panic if you call shortly after applying and they say they don’t see it yet.
  • Once approved, you don’t have to wait for your physical card. Your Medicare Beneficiary Identifier typically appears in your online Social Security or Medicare.gov account within a day or two of approval, and you can print a temporary card from there — the physical card generally arrives by mail within about 30 days.

Excess Charges: The Cost Almost Nobody Knows to Ask About

Here’s a detail that surprises even people who’ve been on Medicare for years: not every doctor who accepts Medicare agrees to accept Medicare’s approved amount as full payment.

Providers fall into three categories:

  • Participating providers accept Medicare assignment, meaning they agree to accept the Medicare-approved amount as payment in full. This covers the vast majority of providers — roughly 98% of doctors nationally.
  • Non-participating providers still accept Medicare patients but haven’t agreed to accept the standard rate. They can charge an excess charge of up to 15% above the Medicare-approved amount.
  • Opted-out providers have left the Medicare system entirely and can charge whatever they want under a private contract — Medicare pays nothing at all for care from these providers, except in emergencies.

How excess charges actually work: if the Medicare-approved amount for a service is $300 and you see a non-participating provider, they can legally charge up to an additional $45 (15%) on top, for a total bill of $345 — and that excess amount doesn’t count toward your Part B deductible.

Eight states currently prohibit or limit excess charges entirely: Connecticut, Massachusetts, Minnesota, New York, Ohio, Pennsylvania, Rhode Island, and Vermont. If you live in one of these states, you’re generally shielded from excess charges from providers within your state — though you could still face them if you receive care from a non-participating provider elsewhere.

Paul’s Honest Take: This is exactly why Medigap Plan G matters so much for people who want maximum flexibility. Plan G covers excess charges in full — Plan N does not. If you’re the kind of person who wants the freedom to see any doctor without worrying about billing surprises, that distinction is worth understanding clearly before you pick between the two. And regardless of which plan you choose, it’s always worth asking a new provider directly whether they accept Medicare assignment before your first appointment.

The HSA Rule: Part B Closes the Door Too

If you’re hoping to keep contributing to a Health Savings Account, know this clearly: enrolling in Part B — or any part of Medicare — ends your ability to make new HSA contributions. This isn’t unique to Part B; it applies the moment you enroll in Medicare in any form, including premium-free Part A.

If keeping your HSA active matters to you, the only way to legally delay both Part A and Part B is through qualifying employer coverage — which, as covered above, generally requires an employer with 20 or more employees. And because Part A enrollment can be backdated up to 6 months once you do enroll, it’s smart to stop HSA contributions 6 months before you plan to sign up for Medicare or file for Social Security, whichever comes first.

Frequently Asked Questions

Is there a cap on what I’ll pay for Part B services in a year? Not under Original Medicare alone — the 20% coinsurance has no yearly limit. A Medigap policy or Medicare Advantage plan is what actually caps your exposure.

What happens if I don’t sign up for Part B on time? You’ll generally face a permanent 10% penalty on your premium for every 12-month period you went without coverage, unless you qualify for a Special Enrollment Period through active employer coverage.

Do I need Part B if I have good coverage through a small employer? Almost certainly yes. If your employer has fewer than 20 employees, Medicare becomes your primary insurer at 65 regardless of your job coverage, and not enrolling can leave you exposed to unpaid claims and a lifelong penalty.

Do veterans need Medicare Part B if they have VA benefits? Generally, yes. Medicare and VA benefits don’t coordinate — each only pays for care within its own system — and VA coverage doesn’t exempt you from Medicare’s enrollment deadlines or penalties.

What is a Part B excess charge? An additional charge, up to 15% above the Medicare-approved amount, that a non-participating provider can legally bill you. It doesn’t count toward your deductible, and only Medigap Plan G (among current plans) covers it in full.

Can I keep contributing to my HSA if I enroll in Part B? No. Enrolling in any part of Medicare, including Part B, ends your HSA contribution eligibility going forward.

How long does it take to get approved for Part B? It depends on the enrollment window. Initial Enrollment Period applications typically process in 2–4 weeks. Special Enrollment Period applications, used when leaving employer coverage, generally take 4–8 weeks since Social Security must manually verify your prior coverage using Form CMS-L564. Start the process at least 2–3 months before you need coverage to begin, especially when coordinating around a job ending.

The Bottom Line

Part B is the half of Medicare that covers your everyday medical care — and it’s also where the real financial exposure of Original Medicare lives, thanks to that uncapped 20% coinsurance. Whether you should enroll at 65, whether you can safely delay, and how much of that exposure you’re carrying all depend on details specific to your situation: your employer’s size, your income, your VA status, and which doctors you actually see.

If you want help sorting out exactly how Part B applies to your specific circumstances — or want to understand how Medigap or Medicare Advantage could close that uncapped coinsurance gap — that’s exactly the conversation I have with clients every day, at no cost to you.

Call 631-358-5793 or visit paulbinsurance.com to set up a time to talk it through.

Paul Barrett, CMIP, is the founder of The Modern Medicare Agency, based in Melville, NY, and has spent 18+ years exclusively helping people navigate Medicare — never life insurance, never annuities, just Medicare. He’s licensed in 37 states, represents more than 40 carriers, and has personally helped over 5,000 clients choose coverage that actually fits their lives.

Figures current as of 2026 and sourced from CMS, Medicare.gov, and the Social Security Administration. Individual circumstances vary, especially around employer coverage, VA benefits, and income-based premiums — always verify your specific situation before making enrollment decisions.

Sources

Related Post

Scroll to Top

Request a Callback with
Paul Barrett

Fill out the form below, and we'll call you within 24 hours.