Medicare Advantage: The Complete Honest Guide

The Short Answer

Medicare Advantage (also called Part C) is a way to get your Medicare benefits through a private insurance company instead of directly through the government. Most plans bundle in prescription drug coverage, an annual cap on what you’ll pay out of pocket, and extras like dental and vision — often for a $0 monthly premium. In exchange, you generally agree to use a specific network of doctors. Done right, shopped properly, in the right area, Medicare Advantage can be genuinely excellent coverage. Done poorly — picked because of a commercial, without checking the network — it can be a real problem. It’s one of two very different paths through Medicare. The other is Original Medicare paired with a Medicare Supplement (Medigap) policy. Confusing the two is the single most common mistake I see, and it’s the reason for this whole guide.

Paul’s Honest Take: I have family members on both Medicare Advantage and Medigap, and they genuinely argue about it at holidays — each one convinced they’ve got the better deal. Here’s the truth: they’re both right, for themselves. That’s the whole point of this guide. There’s no universal “best” answer here. There’s only what fits your doctors, your health, and your area.

Key Takeaways

  • Medicare Advantage replaces Original Medicare — you’re still “on Medicare,” but a private company manages your benefits.
  • Most plans include drug coverage, dental, vision, and hearing built in. Original Medicare alone doesn’t include any of that.
  • You’re generally restricted to a network of doctors and hospitals. Going outside that network can cost more, or not be covered at all.
  • Every Medicare Advantage plan has a yearly cap on what you’ll pay out of pocket ($9,250 in-network for 2026). Original Medicare alone has no cap.
  • Medicare Advantage and Medigap are not the same thing, and you generally can’t have both at the same time.

The “right” choice depends far more on your health situation, your doctors, and your travel habits than it does on the commercial you saw on TV.

What Medicare Advantage Actually Is

Here’s the plain-English version. When you become eligible for Medicare, you get Part A (hospital coverage) and Part B (doctor and outpatient coverage) automatically. That’s Original Medicare — run directly by the federal government. Medicare Advantage is different. Instead of the government paying your medical bills directly, Medicare pays a private insurance company — companies like UnitedHealthcare, Humana, Aetna, or a regional carrier — a set amount per month to manage your care instead. That company then becomes responsible for covering everything Original Medicare covers, and usually adds more on top of it: prescription drugs, dental cleanings, eyeglasses, hearing aids, sometimes even a gym membership or an over-the-counter allowance. That’s the trade nobody explains clearly enough: you’re getting more benefits, but you’re handing more control to the insurance company. With Original Medicare, you can walk into almost any doctor’s office or hospital in the country and they have to treat you if they accept Medicare — which the vast majority do. With Medicare Advantage, you’re generally limited to the doctors and hospitals your specific plan has a contract with. Paul’s Honest Take: I’ve had clients who loved their Medicare Advantage plan for eight straight years — no complaints, great extra benefits, low costs. I’ve also had clients whose plan worked fine right up until they got a serious diagnosis, needed a specialist 45 minutes away who wasn’t in-network, and suddenly understood the tradeoff they’d made. Neither experience is “typical.” Both are real. That’s why I never tell a client Medicare Advantage is good or bad — I tell them what it actually does, and we figure out together whether that fits their life.

Not All Medicare Advantage Plans Are Created Equal

This is the part that gets lost in every “Medicare Advantage vs. Original Medicare” debate, and it matters just as much as the debate itself: the quality of Medicare Advantage plans varies enormously — by carrier, by county, and even block to block within the same county.

There are genuinely excellent Medicare Advantage plans out there. Broad networks that include the hospital systems people actually want, rich extra benefits, low out-of-pocket maximums, strong star ratings. In some areas, a Medicare Advantage plan can outperform what most people assume only Medigap offers.

There are also genuinely weak ones. Thin networks, limited specialist access, a maximum out-of-pocket that sits right at the legal ceiling, extra benefits that look good in an ad but are hard to actually use.

I’d put every plan I review into roughly one of four buckets:

  • Great plans strong local network, low MOOP, real extra benefits, consistently high star ratings
  • Good plans  solid, dependable coverage that fits most people fine, without being flashy
  • OK plans  workable, but usually a real tradeoff somewhere  a thinner network, a higher MOOP, or benefits that sound better than they are
  • Plans to avoid  narrow networks that don’t include the providers people in that area actually use, or a track record of low satisfaction and high complaint rates
Paul’s Honest Take: This is exactly why “Medicare Advantage plans are bad” and “Medicare Advantage plans are great” are both wrong as blanket statements. I’ve placed clients in Medicare Advantage plans I’d happily put my own parents on. I’ve also seen plans I’d steer almost anyone away from. The plan name on the commercial tells you nothing. What tells you something is the specific plan, in your specific county, for the specific year you’re enrolling. There’s also a real tradeoff worth understanding between carriers: some companies compete on extra benefits — a bigger over-the-counter allowance, more dental coverage, a richer fitness perk — but keep a narrower provider network to afford it. Others build a broad, traditional-style HMO or PPO network first, with fewer bells and whistles on top. Neither approach is wrong, but they lead to very different plans, and it’s worth knowing which one you’re looking at before you enroll based on the extras alone.

Medicare Advantage vs. Medigap: The Distinction Almost Nobody Explains Well

This is the question I get asked more than any other, and it’s the reason most people call an agent confused rather than informed. So let’s slow down. There are two completely separate ways to fill the gaps that Original Medicare leaves open. You pick one path or the other — you don’t mix and match. Path 1: Medicare Advantage. You give up Original Medicare’s “any doctor, anywhere” structure in exchange for a plan that includes drug coverage and extra benefits, usually with a low or $0 monthly premium. Your costs show up as copays when you actually use care — $45 for a specialist visit, $300 for an ER trip, and so on. Those costs are capped every year, but you don’t know your exact bill until after you’ve gotten care

Path 2: Original Medicare + Medigap. You keep Original Medicare exactly as it is — any doctor, any hospital, nationwide, no networks — and you buy a separate policy from a private company (that’s the Medigap, or “Medicare Supplement,” policy) that pays most or all of the 20% Original Medicare doesn’t cover. You pay a higher monthly premium for the Medigap policy itself, but once you’re enrolled, your medical bills are extremely predictable — often close to $0 at the point of care, plan depending. You’d typically add a standalone Part D drug plan alongside it, since Medigap doesn’t include drug coverage.

Here’s the table I wish someone had shown me the first time I tried to explain this to a client:

 

Medicare Advantage

Original Medicare + Medigap

Monthly premium

Often $0–$50 (plus your Part B premium)

Higher — Medigap premiums vary by plan and age, plus your Part B premium, plus a separate Part D plan

Doctor access

Limited to plan’s network, usually within your service area

Any doctor or hospital in the U.S. that accepts Medicare

Referrals needed?

Often yes, for HMO plans

No

Drug coverage

Usually built in

Requires a separate Part D plan

Extra benefits (dental, vision, hearing)

Usually included

Not included — you’d buy separately if wanted

Yearly cost cap

Yes — $9,250 in-network max for 2026

No hard cap, but costs are far more predictable month to month

Cost when you actually get sick

Copays and coinsurance, up to your yearly max

Minimal to none, depending on your Medigap plan

Traveling out of state or out of the country

Usually limited or not covered outside your service area

Covered nationwide; some plans include limited foreign travel coverage

Switching later

Easier to get into

Getting into Medigap later may require medical underwriting, depending on your state and timing

Paul’s Honest Take: If I had to boil this down to one sentence, it’s this: Medicare Advantage trades predictability for lower monthly cost. Medigap trades higher monthly cost for predictability. Neither is a scam, and neither is automatically “the smart one.” I’ve enrolled thousands of people in both, and the right answer depends on your health, your finances, and honestly, your

personality  some people sleep better knowing exactly what a hospital stay will cost them before it happens. Others would rather pay less every month and take their chances. Both are valid ways to think about it.

For a full breakdown of Medigap on its own, see our [complete Medigap guide].

What Medicare Advantage Actually Covers

Every Medicare Advantage plan, by law, has to cover everything Original Medicare covers (Parts A and B). Most go further. A typical plan includes:

  • Hospital and doctor visits, same as Original Medicare
  • Prescription drug coverage (this is what makes it an “MAPD” plan)
  • Dental  usually cleanings and basic work, sometimes more with a higher-tier plan
  • Vision  usually an annual eye exam and an allowance toward glasses or contacts
  • Hearing  often includes hearing exams and an allowance toward hearing aids
  • An annual out-of-pocket maximum, which Original Medicare alone does not have
  • In many plans: a fitness benefit (like SilverSneakers), an over-the-counter allowance for things like vitamins and bandages, and transportation to medical appointments

Not every plan includes every extra, and the value of these benefits varies enormously by plan and by county. This is exactly why “I heard Medicare Advantage plans give you a free gym membership” isn’t useful information on its own  the real question is what your specific plan, in your specific ZIP code, actually offers.

What Medicare Advantage Costs in 2026

Nationally, the average Medicare Advantage premium is projected to be about $14 a month in 2026, and roughly two-thirds of plans with drug coverage charge no premium at all beyond what you already pay for Part B.CMS estimates that the average monthly plan premium among all Medicare Advantage enrollees in 2026, including those who pay no premium for their Medicare Advantage plan, will be $14.00 a month But a low or $0 premium is only half the picture — it tells you almost nothing about what you’d actually pay if you got sick. The number that matters more: your out-of-pocket maximum. For 2026, Medicare Advantage plans cannot set an in-network out-of-pocket limit higher than $9,250, or $13,900 combined in-network and out-of-network. In 2026, the out-of-pocket limit for Medicare Advantage plans may not exceed $9,250 for in-network services and $13,900 for in-network and out-of-network services combined That’s the absolute worst-case number

by law  many plans set their actual limit lower. On average, enrollees are in plans with in-network limits closer to $5,400.<cite index=”8-2″>In 2026, the Average Out-Of-Pocket Limits for Medicare Advantage Enrollees Are $5,421 for In-Network Services and $9,825 for In-Network and Out-Of-Network Services Combined</cite>

Paul’s Honest Take: When a client tells me they picked a plan because it’s “free,” I always ask the same follow-up question: what’s the copay if you end up in the hospital? That number tells you more about the real cost of a plan than the premium ever will. A $0 premium plan with a $12,000 out-of-pocket max and a $0 premium plan with a $4,000 max are two very different plans wearing the same price tag.

You’ll still pay your Part B premium ($202.90/month for most people in 2026) regardless of which path you choose  that one doesn’t go away with Medicare Advantage.

$0 Premium Plans: Popular, But Not Automatically Better

$0-premium plans are available in most areas, and they’re by far the most popular choice — which makes sense, since nobody dislikes paying less. Most of the time, a good $0-premium plan is a perfectly smart choice. But “most of the time” isn’t “always.” This is exactly why the marketplace has so many different plans to choose from in the first place: sometimes a plan with a monthly premium genuinely buys you something worth paying for — a broader network that includes a hospital system the $0 plans in your area don’t cover, a meaningfully lower out-of-pocket maximum, or richer drug coverage for an expensive medication you take regularly. Paul’s Honest Take: I never steer someone away from a $0 premium plan just because it’s free — plenty of the best plans I recommend don’t cost a dime. But I also don’t let “it’s free” end the conversation. If a $38-a-month plan gets you a network that includes your cardiologist and the $0 plan doesn’t, that’s not a close call. Compare the whole plan, not just the price tag on the label.

How Many Plans Are Actually Available

Plan availability has been shrinking, and it’s worth knowing that going in rather than being surprised by it. Nationally, the number of individual Medicare Advantage plans dropped about 9% from 2025 to 2026, and several major carriers pulled back from hundreds of counties.<cite index=”14-1″>In total, 3,373 Medicare Advantage plans, including those without prescription drug coverage, are available nationwide for individual enrollment in 2026 – a 9% decrease from 2025</cite> Even so, access remains broad  the average Medicare beneficiary still has around 32 plans with drug coverage to choose from, and 99% of beneficiaries have at least one

plan available where they live.the average Medicare beneficiary will have more than 30 Medicare Advantage plans with prescription drug coverage to choose from Paul’s Honest Take: “Plentiful” and “good for you” are two different things. Having 32 options in your county doesn’t mean 32 of them make sense for your doctors, your medications, and your budget. It usually means 3 or 4 are worth seriously comparing, and the rest you can rule out in the first five minutes.

The Different Network Types, Explained Simply

“Medicare Advantage” isn’t one single structure  it’s an umbrella over a few different network types, and which one you’re looking at changes how much freedom you have to pick your doctors.

  • HMO (Health Maintenance Organization): You pick a primary care doctor, and you generally need a referral to see a specialist. Care outside the network usually isn’t covered except in emergencies. Premiums and copays tend to run lower. This is the most common structure.
  • HMO-POS (HMO with a Point-of-Service option): Works like a standard HMO, but with a limited allowance to step outside the network for certain services — usually at a higher cost. A middle ground between an HMO and a PPO.
  • PPO (Preferred Provider Organization): More flexibility — you can see out-of-network providers, usually at a higher cost, and you typically don’t need referrals to see specialists. Premiums and copays tend to run a bit higher than HMOs, but you’re not locked in as tightly.
  • PFFS (Private Fee-for-Service): A less common structure where the plan — not a network — determines payment terms, and you can generally see any provider willing to accept the plan’s terms. These have become rare as HMOs and PPOs have taken over most of the market.

HMOs still make up the majority of plans nationally, though PPOs have been steadily gaining share over the past several years as carriers respond to demand for more flexibility.<cite index=”14-2″>HMOs account for more than half (57%) of all Medicare Advantage plans offered in 2026 but have declined as a share of all Medicare Advantage plans since 2017 (71% of plans)</cite>

Paul’s Honest Take: If you have one primary doctor you love and you’re happy with a small, local network, an HMO can work beautifully and often costs less. If you split time between two states, or you’ve got specialists spread across a few health systems, a PPO — or honestly, Medigap  usually saves you a real headache down the road.

Special Needs Plans (SNPs): Medicare Advantage for Specific Situations

There’s one more category worth knowing about, because it catches people off guard when they hear the term for the first time: Special Needs Plans, or SNPs. These are Medicare Advantage plans built specifically for people in certain circumstances, and you generally have to qualify to enroll in one. There are three types:

  • D-SNP (Dual Eligible SNP): For people who qualify for both Medicare and Medicaid. These plans coordinate the two programs together and often come with very low or no out-of-pocket costs, since Medicaid picks up much of what Medicare doesn’t.
  • C-SNP (Chronic Condition SNP): For people diagnosed with certain qualifying chronic conditions — like diabetes, heart failure, or chronic lung disease. These plans are built around managing that specific condition, often with tailored provider networks and benefits.
  • I-SNP (Institutional SNP): For people who live in, or require the level of care provided in, a nursing home or similar long-term care setting.

Paul’s Honest Take: SNPs get overlooked constantly because most Medicare marketing is built around the general population. If you or someone you’re helping qualifies for Medicaid, or is managing a serious chronic condition, it’s worth specifically asking whether a SNP is available in your county  it’s often a stronger fit than a standard plan, and a lot of people simply never hear the option exists.

Star Ratings: What They Mean and What They Don't

Every Medicare Advantage plan gets a star rating from 1 to 5, published by CMS, based on things like member satisfaction, how well the plan manages chronic conditions, and customer service responsiveness. It’s a genuinely useful tool — but it’s a snapshot of averages across everyone on the plan, not a promise about your personal experience. Paul’s Honest Take: A 4.5-star plan with a network that doesn’t include your cardiologist is not a better choice for you than a 3.5-star plan that does. Star ratings are a great tiebreaker between two plans that already both work for your doctors and your medications — they’re a bad starting point on their own. One rule worth knowing: if a 5-star plan is available in your area, you get a special, year-round window — the 5-Star Special Enrollment Period — to switch into it, once per year, outside of the usual enrollment windows. It runs December 8 through November 30. Five-star plans are rare, but if one shows up in your county, this SEP means you’re not stuck waiting for the next AEP to make the move.

Who Medicare Advantage Tends to Fit Well

  • You’re comfortable with a network and don’t mind getting referrals when needed
  • You don’t travel frequently outside your plan’s service area
  • Keeping your monthly premium low matters more to you than having fully predictable costs
  • You want dental, vision, and hearing coverage built into one plan
  • You’re generally healthy, or your current doctors are already in-network

Who Should Take a Harder Look at the Alternative

  • You have specific specialists or a hospital system you’re not willing to switch away from
  • You split time between two states, or travel frequently
  • You have a complex or serious health condition where predictable costs matter more than a low premium
  • You strongly prefer the freedom to see any doctor in the country, anytime

Paul’s Honest Take: This is genuinely the most important conversation I have with clients, and it’s not a five-minute one. It usually starts with me asking who your doctors are  not what plan looks shiniest.

When You Can Enroll

  • Initial Enrollment Period: The 7-month window around your 65th birthday
  • Annual Enrollment Period (AEP): October 15 – December 7 every year — you can switch, join, or drop a Medicare Advantage plan for the following year
  • Medicare Advantage Open Enrollment Period: January 1 – March 31 — if you’re already in a Medicare Advantage plan, you get one chance to switch to a different Medicare Advantage plan or move back to Original Medicare
  • Special Enrollment Periods: Triggered by specific life events  moving, losing employer coverage, a plan leaving your area, and others

For the full breakdown of every deadline and penalty, see our [Medicare Enrollment guide].

Frequently Asked Questions

 No. It’s actually illegal for someone to sell you a Medigap policy if they know you’re enrolled in Medicare Advantage, because the two aren’t designed to work together.
 Yes. You’re still entitled to all your Medicare benefits — you’re just receiving them through a private company instead of directly through the government.
 Yes, generally during AEP (Oct 15–Dec 7) or the Medicare Advantage Open Enrollment Period (Jan 1–Mar 31). Keep in mind that adding a Medigap policy at that point may involve medical underwriting depending on your state and how much time has passed since your Medigap Open Enrollment Period.
 Most plans do these are called MAPD plans (Medicare Advantage Prescription Drug plans). A small number of plans don’t include drug coverage, so it’s worth checking specifically.
 Many plans have a $0 monthly premium, but “free” only refers to that premium. You’ll still pay your Part B premium, and you’ll still have copays and coinsurance when you actually use care, up to your plan’s yearly maximum.
 It can. Carriers are allowed to adjust premiums, copays, covered drugs, and even which doctors are in-network from one year to the next. This is exactly why reviewing your plan every single Annual Enrollment Period matters — even if you’re happy today.
 A Medicare Advantage plan built for a specific group — people who qualify for both Medicare and Medicaid (D-SNP), people managing certain chronic conditions (C-SNP), or people who need nursing-home-level care (I-SNP). You have to meet the plan’s qualifying criteria to enroll. specifically.
Yes, if one’s available in your area. The 5-Star Special Enrollment Period runs December 8 through November 30 and lets you make one switch into a 5-star-rated plan outside the normal enrollment windows.
 Not always. It’s often a great choice, but a plan with a small monthly premium can sometimes offer a broader network, a lower out-of-pocket maximum, or better drug coverage. The premium is one factor among several worth comparing.

The Bottom Line

Medicare Advantage isn’t good or bad — it’s a genuine tradeoff, and the quality of any individual plan can range from truly excellent to one worth avoiding, depending on where you live and how carefully it’s shopped. Compared properly — network, out-of-pocket max, drug coverage, and extras, not just the premium — a Medicare Advantage plan can be some of the best coverage available. Compared carelessly, it can leave you stuck with a plan that doesn’t fit your life. What matters is understanding the trade clearly enough to make the choice yourself, instead of picking whatever plan had the loudest commercial. If you want to walk through what actually fits your situation — your doctors, your medications, your budget — that’s exactly the conversation I have with clients every day, at no cost to you. I represent 40+ carriers, so there’s no plan I’m pushed to recommend over another.

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 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 and KFF analysis of CMS Medicare Advantage Landscape and Enrollment Files. Medicare Advantage costs, benefits, and provider networks vary by plan and county — always verify specific plan details for your ZIP code at Medicare.gov before enrolling.

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

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