Medicare Mistake Risk Checker

New to Medicare · Learn Medicare

Are you at risk of a costly Medicare mistake?

Missing a deadline or picking the wrong plan can cost you for the rest of your life — through lifelong penalties or coverage you can’t easily change. Find out which mistakes you’re most at risk of, in about a minute.

Why This Matters

The wrong move on Medicare can follow you for life.

Medicare has a handful of traps that catch people every year — and some of them come with a penalty you pay every month, forever. Others quietly lock you into coverage that’s hard to change later. The good news? Almost every one of them is completely avoidable if you know it’s coming.

This page helps you spot your personal risks before they cost you — then points you to the exact tools and free help to avoid them. Start with the checker below.

New here? Begin with What is Medicare or the full Medicare 101 guide.
Interactive · Risk Checker

Which situation sounds most like you?

Tap the one that fits — you’ll instantly see the mistakes you’re most at risk of, and how to avoid them. Your answer appears on the right.

Your top risks

Turning 65 soon

  • ●Missing your Initial Enrollment Period. Sign up on time or you can face a lifelong Part B penalty. See the windows.
  • ●Assuming Medicare is automatic. For most people it isn’t — you usually have to enroll yourself.
  • ●Skipping drug coverage. No Part D when you’re first eligible can mean a permanent penalty.
See How to Apply
Your top risks

Still working past 65

  • ●Delaying Part B when you shouldn’t. With a small employer, delaying can be a costly mistake.
  • ●Trusting COBRA or retiree coverage. These don’t let you delay Part B — a very common trap.
  • ●Missing your Special Enrollment Period when you leave the job. See employer rules.
Check Employer Rules
Your top risks

Choosing a plan now

  • ●Picking a plan your doctors don’t take. Always confirm your providers first.
  • ●Ignoring your drug costs. The wrong drug plan can cost hundreds a year. Price your meds.
  • ●Choosing on premium alone without weighing the out-of-pocket gap.
See How to Choose
Your top risks

Already enrolled, want to review

  • ●Never re-shopping. Plans and prices change yearly — set-and-forget can cost you.
  • ●Missing the Annual Enrollment Period (Oct 15 – Dec 7) to make changes.
  • ●Not knowing your rights to switch. A free review often finds savings.
Get a Free Review
Your top risks

On disability or under 65

  • ●Not knowing you may qualify. Medicare isn’t only for 65+. Check eligibility.
  • ●Missing special rules for SSDI, ALS, or ESRD that change your timing.
  • ●Overlooking ACA coverage as a bridge if you’re not yet eligible.
Check Eligibility

Not sure which risks apply to you? Let’s check together.

A licensed May River advisor will review your situation and catch any mistakes before they cost you — free, and with no pressure.

Know the Traps

The 6 most common Medicare mistakes.

These catch people every year. Knowing them is how you avoid them.

1

Missing your enrollment window

Sign up late for Part B and you can pay a penalty every month for the rest of your life.

2

Trusting COBRA to hold you over

COBRA and retiree plans don’t let you delay Part B — a costly and common misunderstanding.

3

Picking a plan your doctor drops

Not confirming your doctors and medications are covered before enrolling.

4

Choosing on price alone

The cheapest premium can leave you exposed to big out-of-pocket costs later.

5

Skipping drug coverage

No Part D when first eligible can mean a permanent late-enrollment penalty.

6

Never reviewing again

Set-and-forget. Plans change yearly, and a quick review often finds real savings.

Free Tools

Tools that help you avoid every one of these.

Use these free, no-login tools to check yourself — or let a licensed advisor do it with you.

2-Minute Quiz

Find My Medicare Match

Answer a few questions and get a personalized recommendation on the right path.

Take the quiz 
Prescriptions

Drug Coverage Calculator

Check how your medications are covered so drug costs never surprise you.

Price my drugs 
Timing

Enrollment Periods

Know every window so you never miss a deadline or trigger a penalty.

See the windows 
Compare

How to Choose a Plan

Weigh Supplement vs Advantage against your doctors, drugs, and budget.

Choose a plan 
Budget

Medicare Costs

See the 2026 numbers and the IRMAA income surcharge before you commit.

Understand costs 
Plan & Cost

Calculator & Planning Tools

Estimate your total Medicare costs and compare your options side by side.

Open the tools 
Quick Answers

Mistake & penalty questions.

What is the biggest Medicare mistake people make?
Missing your enrollment deadline. If you don’t sign up for Part B when you’re first eligible (and don’t have qualifying employer coverage), you can face a lifelong late-enrollment penalty added to your premium — plus a possible gap in coverage.
Is the Part B late penalty really for life?
Yes. The Part B late-enrollment penalty is generally added to your premium for as long as you have Part B, and it grows the longer you wait. That’s why timing matters so much — and why a quick check now can save you for years.
Does COBRA count as coverage so I can delay Part B?
No. COBRA and retiree coverage do not count as active employer coverage for delaying Part B. Relying on them is one of the most common — and costly — mistakes. See our Employer Coverage page.
Can I fix a Medicare mistake after it happens?
Sometimes. You can often make changes during the Annual Enrollment Period (Oct 15 – Dec 7), and special situations can open other windows. But some penalties are permanent — which is why avoiding the mistake up front is best. A free advisor review is the fastest way to know your options.
How do I make sure I don’t make one of these mistakes?
Use the free tools on this page, and talk with a licensed advisor before you decide. We compare 30+ carriers, confirm your doctors and drugs, watch your deadlines, and re-shop your coverage each year — at no cost to you.

Let’s catch your risks before they cost you.

A licensed May River advisor reviews your situation, spots any mistakes, and helps you avoid them — free, no pressure, and your advocate for life.

(843) 227-6725