Couple studying Medicare materials at kitchen table

Why Medicare Education Matters for Your Coverage in 2026

Medicare education is the process of learning about Medicare coverage options, costs, and enrollment rules so you can make confident healthcare decisions at age 65 or when leaving employer coverage. Why Medicare education matters becomes clear the moment you realize that most people approaching this transition carry serious misconceptions about what Medicare actually covers and what it costs. Proactive Medicare conversations ease stress and uncover retirement planning opportunities that most people miss entirely. At Paulbinsurance, we have worked with Medicare consumers since 2007, and the pattern is consistent: the people who struggle most are the ones who waited too long to learn.

Why Medicare education matters more than most people realize

The average person approaching Medicare eligibility knows far less than they think. Consumers scored fewer than 4 correct answers out of 10 on a Medicare basics quiz, and nearly 80% say they want help understanding coverage, timing, and costs. That score means most people heading into one of the biggest financial decisions of their retirement are working with less than half the information they need.

The knowledge gaps are not limited to consumers. Only 15% of consumers discussed Medicare with a financial professional, and those professionals averaged just 6 correct answers out of 10 themselves. This means the people most likely to be asked for guidance are also operating with incomplete information.

The consequences show up in real dollars. Only 26% of U.S. adults correctly understand that Medicare covers roughly two-thirds of retiree healthcare costs. The remaining third includes premiums, copays, deductibles, prescriptions, dental, vision, hearing, and long-term care. Overestimating coverage leads directly to underestimating retirement expenses.

“The biggest mistake I see isn’t choosing the wrong plan. It’s assuming Medicare covers everything and building a retirement budget around that assumption.”

Common knowledge gaps include:

  • Enrollment windows: Missing your Initial Enrollment Period triggers late enrollment penalties that follow you for life.
  • Coverage limits: Medicare does not cover routine dental, vision, or hearing without a supplement or Advantage plan.
  • Out-of-pocket exposure: Original Medicare has no annual out-of-pocket maximum, which surprises most new enrollees.
  • Part D complexity: Drug formularies change annually, meaning a plan that covered your medications in 2025 may not in 2026.

How does Medicare differ from employer coverage?

Employer coverage works as a single package. Medicare does not. Medicare is divided into parts, and each part covers a different category of care. Part A covers hospital stays, Part B covers outpatient services and doctor visits, Part C (Medicare Advantage) bundles A and B through private insurers, and Part D covers prescription drugs. Understanding Medicare’s parts and costs is the foundation of making any enrollment decision well.

Hands comparing Medicare and employer insurance documents

The structural differences go beyond coverage categories. Employer plans often cover your entire family under one policy. Medicare covers only the individual. Your spouse must enroll separately and on their own timeline. This catches couples off guard, particularly when one spouse is younger than 65 and loses dependent coverage when the older spouse retires.

Infographic comparing Medicare parts with employer coverage

Feature Employer coverage Medicare
Family coverage Yes, typically included No, individual enrollment only
Annual out-of-pocket maximum Yes, required by law Only with Advantage plans
Prescription drug coverage Usually bundled Requires separate Part D enrollment
Provider network Employer-selected Varies by plan type
Enrollment timing At hire or open enrollment Strict windows tied to age and work status

Choosing the right Medicare path requires evaluating your health status, the medications you take, your preferred doctors, and your tolerance for cost-sharing. These are factors employer plan selection rarely forces you to think through in the same detail.

Pro Tip: If you are still working at 65 and covered by employer insurance, you may be able to delay Part B without penalty. Confirm with your HR department whether your employer plan qualifies as creditable coverage before making any decisions.

Missing enrollment windows is one of the most financially damaging mistakes a new beneficiary can make. The Part B late enrollment penalty adds 10% to your premium for every 12-month period you were eligible but did not enroll. That penalty is permanent. Our guide on avoiding enrollment mistakes walks through exactly when and how to enroll without triggering penalties.

What is the “knowing vs. doing” gap in Medicare enrollment?

Understanding Medicare and actually completing Medicare enrollment are two different problems. Medicare patients face a significant administrative burden that blocks access even when they know what they need to do. Forms are lengthy. Phone wait times are long. Follow-up calls get dropped. Verification steps get missed.

“Information alone does not produce enrollment. Action does. And action requires someone to guide you through the steps, not just hand you a brochure.”

The execution gap shows up in predictable ways. Here are the most common administrative hurdles new beneficiaries face:

  1. Social Security coordination: Enrolling in Medicare Part B requires coordination with the Social Security Administration, which involves separate applications and timing rules that confuse most first-time enrollees.
  2. Prescription drug plan selection: Comparing Part D plans requires entering your specific medications into Medicare’s Plan Finder tool and evaluating formularies, tiers, and pharmacy networks.
  3. Supplement underwriting: Medigap plans outside of your Open Enrollment Period require medical underwriting in most states, meaning your health history affects your eligibility and pricing.
  4. Annual plan reviews: Medicare Advantage and Part D plans change every year during the Annual Enrollment Period (October 15 to December 7). Failing to review your plan annually can result in higher costs or lost coverage.

Patient advocates and independent agents close this gap by turning knowledge into completed tasks. Educational materials structured as actionable task lists with timing, document requirements, and verification steps produce better outcomes than benefit overviews alone.

Pro Tip: Before your 65th birthday, create a simple checklist: confirm your Social Security enrollment status, list your current medications, identify your preferred doctors, and note your current plan’s creditable coverage status. This 30-minute exercise prevents most common enrollment errors.

How does Medicare education improve financial confidence?

The financial stakes of Medicare literacy are not abstract. 62% of Medicare beneficiaries say Medicare is extremely important to their ability to afford healthcare. Six in ten adults are more concerned about Medicare changes today than they were a year ago. Education does not eliminate that concern, but it gives you the tools to plan around it rather than react to it.

Fidelity estimates $172,500 in healthcare costs per person over retirement, excluding long-term care. Healthcare inflation consistently outpaces general inflation. A retiree who overestimates Medicare coverage and underestimates out-of-pocket costs will face a cash flow crisis that no amount of Social Security income can easily absorb.

Medicare literacy reduces that risk by teaching you to evaluate total cost, not just monthly premiums. The factors that matter most include:

  • Deductibles: The 2026 Part B deductible and Part A hospital deductible both affect your annual out-of-pocket exposure before coverage kicks in.
  • Coinsurance: Original Medicare typically covers 80% of approved costs. You are responsible for the remaining 20% with no cap unless you have a Medigap policy.
  • Drug formularies: Your Part D plan’s formulary determines which medications are covered and at what cost tier. A formulary change mid-year can double your monthly drug costs.
  • Supplemental coverage: Medicare Supplement plans (Medigap) and Medicare Advantage plans handle cost-sharing differently. Knowing which structure fits your health and financial situation is the core of evaluating total Medicare costs.

You can also reduce prescription costs significantly through tools like prescription savings programs that work alongside your Part D coverage. Combining a well-chosen drug plan with a savings program is a strategy most new beneficiaries never consider because no one explained it to them.

Key takeaways

Medicare education is the single most effective way to prevent costly enrollment mistakes, coverage gaps, and retirement budget shortfalls for anyone approaching age 65.

Point Details
Knowledge gaps are widespread Consumers average fewer than 4 correct answers out of 10 on Medicare basics, making education urgent.
Medicare differs structurally from employer plans No family coverage, strict enrollment windows, and separate parts require individual planning.
Execution matters as much as knowledge Administrative burdens block enrollment even for informed beneficiaries; guided task lists improve outcomes.
Financial stakes are high Fidelity estimates $172,500 per person in retirement healthcare costs, making accurate coverage knowledge critical.
Total cost beats premium focus Evaluating deductibles, coinsurance, and drug formularies prevents budget surprises that premiums alone do not reveal.

Why I tell every client to start learning before they think they need to

I have been working with Medicare consumers since 2007, and the single most consistent pattern I see is this: people wait until they are 64 and a half to start asking questions, and by then, they are already behind. The enrollment window opens three months before your 65th birthday. If you start learning at 64 and a half, you have weeks, not months, to make decisions that will affect your healthcare costs for the rest of your life.

The second pattern I see is what I call the premium trap. People compare plans by monthly premium and pick the lowest number. Then they spend the year paying for services their plan does not cover well, or they discover their doctor is out of network, or their medication jumped two formulary tiers. The premium was low. The total cost was not.

What I have found actually works is treating Medicare education as a retirement planning task, not a healthcare task. The people who come in with a list of their medications, their doctors, and a rough sense of their retirement income are the ones who make good decisions. The people who come in with a plan brochure and a question about the monthly cost are the ones who need the most help.

My honest advice: start with our Medicare 101 seminar before you talk to anyone about specific plans. Get the foundation right first. Then the plan comparison becomes a much shorter conversation.

— Paul

Get personalized Medicare guidance for 2026

Paulbinsurance specializes in Medicare education and independent plan comparison for individuals approaching 65 or leaving employer coverage. Our team of independent agents does not represent one carrier. We represent you.

https://paulbinsurance.com

Whether you need a clear explanation of your 2026 options or hands-on help completing enrollment, we have the resources to support you. Start with our 2026 Medicare confidence guide for a plain-language breakdown of every coverage decision you will face. If cost management is your priority, our retirement healthcare cost guide walks through strategies for controlling out-of-pocket expenses through smart plan selection. Contact us directly for a no-pressure, one-on-one consultation.

FAQ

What does Medicare education actually cover?

Medicare education covers the structure of Medicare Parts A, B, C, and D, enrollment timelines, cost-sharing rules, and how to compare plan options based on your health needs and budget. It also addresses the administrative steps required to complete enrollment without triggering penalties.

When should I start learning about Medicare?

Start at least six months before your 65th birthday. Your Initial Enrollment Period opens three months before the month you turn 65, so you need time to research options before that window begins.

Why does Medicare education matter if I already have good employer coverage?

Employer coverage ends or changes when you retire or reduce your hours. Medicare has strict enrollment windows tied to your work status, and missing them results in permanent late enrollment penalties. Understanding the transition rules before you leave employer coverage prevents costly mistakes.

How is Medicare Advantage different from Original Medicare?

Medicare Advantage (Part C) bundles hospital, outpatient, and usually drug coverage through a private insurer, often with lower premiums but narrower provider networks. Original Medicare offers broader provider access but no annual out-of-pocket cap without a Medigap supplement.

Can Medicare education help me reduce my healthcare costs in retirement?

Yes. Evaluating total out-of-pocket costs including deductibles, coinsurance, and drug formularies rather than focusing only on premiums is the most direct way education reduces retirement healthcare expenses. Fidelity estimates $172,500 per person in retirement healthcare costs, and informed plan selection is the primary lever for managing that figure.

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.

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