12 Services Medicare Part B Covers (And 5 It Won’t Pay For)

While finding insurance coverage is always a hassle, Medicare has a vocabulary all its own that can be particularly hard for first-time plan participants to parse.

For instance, Medicare Part A covers hospital stays, Part D covers prescription drugs, and Part B is a more general medical insurance plan.

But what can you expect from Medicare Part B coverage, and just how much will it impact your bottom line? We answer these common Part B questions to help you avoid wasting money on services your insurance won't cover.

What is Medicare Part B?

Medicare Part B is an essential part of Original Medicare. The other part, Part A, contributes to major health expenses like hospital stays, hospice care, and at-home health care services you might need as you age. 

Part B covers less intensive, more mundane medical experiences, including doctor's visits and preventive care.

You can enroll in Medicare three months before you turn 65, whether you retire early or plan to retire as late as possible.

1. Durable diabetic equipment (Covered)

Medicare Part B covers durable medical equipment (DME), which are long-lasting, typically expensive devices used at home. 

For instance, Part B will help pay for at-home glucose monitors, lancets, and glucose tests used with the monitors. Part B may also cover the cost of non-disposable, durable insulin pumps.

Insulin is also covered if you use an insulin pump that's under Part B's durable medical equipment benefit.

2. Emergency ambulance transportation to the nearest ER (Covered)

While Medicare Part A helps cover hospital stays, you need Medicare Part B to pay for ambulance trips to the nearest emergency hospital.

Medicare Part B may also cover non-emergency ambulance trips, but only if your doctor writes you an order for non-emergency transportation.

3. Recommended cancer screenings (Covered)

As you get older, it's important to stay on top of preventive cancer screenings to rule out the possibility of cancer or seek early intervention.

Medicare's cancer screening coverage varies by age and cancer type. 

For instance, Medicare will cover one breast cancer screening per year and one colonoscopy every two years (for high-risk patients) or 10 years (for everyone else).

4. Diabetic screenings (Covered)

According to the American Diabetes Association, 16.5 million seniors have diabetes, almost 30% of the senior population.

If your doctor flags you at risk for developing diabetes, Medicare Part B helps cover labs for glucose tests up to twice per calendar year.

5. Diabetic self-management training (Covered)

If your covered glucose tests reveal a diabetes diagnosis, Medicare will help pay for 10 hours of self-management training to teach you how to manage your diabetes from home.

6. Flu shots (Covered)

Seniors are much more likely to experience serious complications from the seasonal flu.

Since flu shots are a critical preventive measure for protecting seniors and stopping the flu from spreading through the community, Medicare pays for one seasonal flu vaccine per year.

7. Walkers, wheelchairs, and scooters (Covered)

Durable medical equipment covered by Medicare Part B includes mobility devices like walkers, wheelchairs, and electric-powered scooters.

Part B will only cover the equipment if your doctor states that you need it at home to assist with your mobility and quality of life.

8. Annual wellness visits (Covered)

A wellness visit is a Medicare-sponsored annual check-in with your primary care provider during which you create, discuss, or update a personal health care treatment plan.

While the visit may include basic physical metrics such as your blood pressure, weight, and heart rate, its main purpose is to develop a personalized health care plan that considers your family's health history, personal risk factors, and current quality of life.

9. Nutrition counseling for diabetes and kidney disease (Covered)

To manage medical conditions such as diabetes and kidney disease, your doctor will likely recommend dietary changes. 

For instance, seniors with kidney disease should be cautious about consuming too much salt, while those with diabetes must carefully monitor their blood sugar levels.

To help you adjust to a new diet, Medicare Part B will pay for nutrition counseling sessions and check-ins with a registered dietitian.

10. Smoking cessation counseling (Covered)

Smoking can drastically increase your risk of heart disease, stroke, and lung cancer.

If you want help to quit smoking, Medicare will help cover as many as eight tobacco- or smoking-related counseling sessions each year to help you stop.

11. Outpatient mental health care (Covered)

Medicare Part B covers outpatient treatment for mental and physical health. Specifically, Part B helps pay for counseling, depression screenings, family therapy, diagnosis, and psychiatric evaluations.

It may also cover partial hospitalizations, which your doctor may recommend as an alternative to longer-term inpatient hospitalizations. Long-term hospitalizations are covered only under Medicare Part A.

12. Dialysis (Covered)

If you have end-stage renal disease and your kidneys no longer function properly, you'll likely need dialysis, a treatment that rids your blood of waste products your kidneys would otherwise flush out of your system.

While Medicare Part A pays for hospital stays related to kidney failure, Part B pays for outpatient services, including dialysis center visits, some home dialysis supplies, and training that teaches you and a caregiver to perform home dialysis.

1. Disposable insulin pens and supplies (Not covered)

Medicare Part B covers durable medical equipment, which doesn't include disposable, single-use medical devices like syringes and needles. 

Similarly, Part B doesn't cover disposable, sterile supplies needed for safe insulin injections, such as gauze or alcohol wipes.

2. Prescription medications (Not covered)

You must sign up for a Medicare Part D plan to get insurance coverage for prescription drugs. If you don't have prescription drug coverage, you'll be charged a late enrollment fee based on the amount of time you spent without coverage.

It's smart to enroll in Medicare Part D during your initial enrollment period, even if you aren't taking prescription medications.

3. Inpatient hospital care (Not covered)

Medicare Part B covers many outpatient services and medical products, including medical devices you can use at home, like walkers and glucose tests. It also covers ambulance transportation to the nearest emergency room if you experience a medical emergency.

However, it doesn't cover anything related to a hospital stay once you're admitted. For inpatient hospital coverage, you'll need Medicare Part A.

4. Short-term care at a skilled nursing facility (Not covered)

After being hospitalized for a major medical event, such as a debilitating injury or illness, you might need to spend time at a skilled nursing facility (SNF) as part of your recovery process. 

An SNF is a short-term inpatient care facility that provides speech, physical, and other rehabilitation services.

Even though it occurs outside a hospital, an SNF stay is covered only by Medicare Part A, not Part B.

5. Inpatient surgery (Not covered)

Medicare Part A (not Part B) helps you pay for medically necessary surgeries requiring an inpatient hospital stay. The surgery has to be deemed medically necessary, not cosmetic or optional, to qualify for Medicare coverage.

On the other hand, if one doctor recommends surgery but you want a second opinion before you commit, Medicare Part B may help you keep more money in your bank account by paying for your secondary doctor's visit.

Bottom line

Health care expenses can eat up a large chunk of your retirement budget, so choosing the right health insurance plan is essential for a stress-free retirement. 

During your initial enrollment period, compare Medicare Part B's coverage to the coverage you'd get from a private Medicare-contracted insurer with a Medicare Advantage plan.

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Author Details

Michelle Smith

Michelle Smith, a writer for FinanceBuzz, has spent a decade writing for and about small businesses. She specializes in all things finance and has written for publications like G2 and SmallBizDaily. When she's not writing for work at her desk, you can usually find her writing for pleasure near large bodies of water.