Skip to main content

If you’re joining Medicare for the first time — or doing your 2026 open enrollment review — there’s something important you should know: Medicare covers a surprising number of preventive services at 100%, with no copay or deductible.

Let’s walk through what that really means, what’s included, and how to avoid surprise costs.


What “100% Covered” Really Means

Most services under Medicare Part B cover 80% of the cost, leaving you or your Medicare plan to pick up the rest. But certain preventive and screening services are different.

These services are fully covered as long as:

  • They’re considered “preventive,” not diagnostic

  • The provider accepts Medicare assignment

  • They’re done according to Medicare’s recommended schedule

That means no cost to you — and no reason to skip these important appointments.


What’s Included?

Here are just a few of the fully covered services:

  • Mammograms (screening) – once every 12 months for women over 40

  • Colorectal cancer screenings – including colonoscopies, stool DNA tests, and fecal blood tests

  • Cervical & vaginal cancer screenings – typically once every 24 months

  • Bone mass measurements – every 24 months for those at risk

  • Flu shots, COVID-19 vaccines, pneumococcal & hepatitis B shots – typically once per year

  • Diabetes and cardiovascular screenings – various intervals depending on your risk

  • Welcome to Medicare preventive visit – a one-time visit in your first 12 months

  • Yearly Wellness Visits – once every 12 months after your first year

These services are meant to help detect issues early — when they’re easier and less expensive to treat.


Where People Get Caught Off Guard

Even though these services are covered, it’s easy to accidentally get hit with a bill. Here’s how that happens:

  • Timing matters: A “yearly” wellness visit means 12 months from your last one — not once per calendar year.

  • Extra screenings: Some doctors recommend certain screenings more often than Medicare allows. For example, cervical cancer screenings are covered every two years, but some doctors still schedule them yearly.

  • Shifting from preventive to diagnostic: If you go in for a routine colonoscopy and they find something, it becomes diagnostic — and standard Medicare cost-sharing applies.

The key is understanding what’s covered and how often. If your doctor recommends something more frequent, ask if Medicare will still cover it — or if you might be charged.


Why This Matters Now

Whether you’re new to Medicare or reviewing your plan for 2026, using your preventive benefits wisely can help you stay healthier — and protect your wallet.

But you don’t have to memorize every rule. Our Medicare Enrollment Concierge helps you take full advantage of the benefits available to you — with personalized guidance that makes Medicare easy to understand and even easier to use.

2 Comments

  • Jann Tracy says:

    2025 is my first yr on Medicare. My wellness exam (not mammogram or pap) was not covered. I appealed and it was still denied. You need to clarify the wellness exam at an OB/GYN IS NOT covered.

    • The reality is the wellness exam doesn’t usually cover much. When we have clients in your situation we will ask 1) how did the doctor code it and 2) does the provider doing the exam accept Medicare. This can help us know where we need to push to get it approved. Most services like this are approved once the billing is sorted, and it’s proven to be medically necessary or part of the preventative services

Leave a Reply