What Does Medicare Part B Cover? Essential Benefits You Shouldn’t Miss in 2025

If you’re approaching 65 or reviewing your Medicare options, one question comes up again and again: What does Medicare Part B cover? Knowing what Medicare Part B covers—and what it doesn’t— can save you time, money, and frustration.

Whether you live in Oakland County, Grand Rapids, or anywhere across Michigan, Medicare Part B plays a critical role in your health coverage. Let’s break down exactly what you get with Part B in 2025—and how to make the most of it.

What Is Medicare Part B?

Medicare Part B is the outpatient coverage portion of Original Medicare. While Part A covers hospital stays and inpatient care, Part B is what helps pay for the everyday healthcare you’re more likely to use—like doctor visits, preventive services, lab work, and outpatient procedures.

You’re eligible for Part B if you’re 65 or older, or under 65 with certain disabilities. Most people enroll during their Initial Enrollment Period (IEP), which begins three months before your 65th birthday.

What Does Medicare Part B Cover?

Here’s what you can expect your Medicare Part B coverage to include in 2025:

1. Doctor and Specialist Visits

Routine check-ups, primary care, and visits with specialists are all covered. Whether you’re managing chronic conditions or scheduling an annual wellness visit, Medicare Part B helps reduce your out-of-pocket costs.

2. Preventive Screenings and Vaccinations

Part B covers a wide range of preventive services at no cost to you when provided by a participating provider. These include:

• Flu shots

• COVID-19 vaccines

• Mammograms

• Colonoscopies

• Cardiovascular screenings

• Diabetes screenings

• Annual wellness visits

Preventive care is one of the best ways to stay ahead of chronic conditions and reduce healthcare expenses over time.

3. Outpatient Lab Tests and Diagnostic Imaging

Medicare Part B pays for blood work, urinalysis, MRIs, CT scans, X-rays, and other outpatient diagnostics when medically necessary.

If your doctor orders a test to diagnose or monitor a health condition, Part B will typically cover 80% of the approved amount after you meet your deductible.

4. Mental Health and Therapy Services

Mental and behavioral health services are also included in Medicare Part B coverage. These can include:

• Outpatient counseling or therapy

• Psychiatric evaluations

• Depression screenings

• Substance use disorder treatment

• Telehealth therapy appointments

If you’re asking what does Medicare Part B cover beyond just physical health—mental health support is a vital component.

5. Durable Medical Equipment (DME)

Part B helps cover medical equipment that’s prescribed for use at home, including:

• Walkers and wheelchairs

• Oxygen supplies

• Blood sugar monitors

• CPAP machines for sleep apnea

Medicare typically covers 80% of the approved cost, with you responsible for the remaining 20%.

6. Outpatient Surgeries and Procedures

Minor surgeries and treatments done at outpatient centers or doctor’s offices are covered under Part B. This includes procedures like cataract surgery, biopsies, and certain injections (such as corticosteroids or chemotherapy drugs).

7. Home Health Care (Limited)

Medicare Part B covers some home health services if you’re homebound and need skilled nursing care or therapy services. This includes:

• Intermittent skilled nursing

• Physical therapy

• Occupational therapy

• Speech-language pathology

This can be a lifeline for individuals recovering from surgery or illness who need care at home.

What Doesn’t Medicare Part B Cover?

While Medicare Part B covers a lot, there are key services it does not include, such as:

• Prescription drugs (covered under Part D)

• Long-term care (nursing homes or assisted living)

• Routine dental, vision, or hearing exams

• Most hearing aids and eyeglasses

If you’re wondering does Medicare pay for hearing aids—the answer is typically no, unless covered under a Medicare Advantage plan.

These gaps are why many people in Michigan choose to enroll in a Medicare Supplement (Medigap) plan or a Medicare Advantage plan for more comprehensive coverage.

Medicare Part B Costs in 2025 (Michigan)

Here’s what Michigan residents can expect to pay for Medicare Part B in 2025:

• Monthly premium: $184.90 (standard)

• Annual deductible: $245

• Coinsurance: 20% for most services after deductible

Good to know: If your income is higher than $103,000 (individual) or $206,000 (joint), you may pay more due to IRMAA (Income-Related Monthly Adjustment Amount).

For lower-income residents, Medicare Savings Programs may help cover these costs.

How to Get the Most Out of Medicare Part B

Here are a few expert tips to help you maximize your Medicare Part B benefits:

• Use preventive care: Take full advantage of covered screenings to stay ahead of health issues.

• Choose Medicare-assigned providers: This ensures your claims are covered and you avoid balance billing.

• Consider Medigap or Medicare Advantage: These can fill in the coverage gaps and reduce out-of-pocket expenses.

When Should You Enroll in Medicare Part B?

It’s important to enroll in Part B during your Initial Enrollment Period unless you have other credible coverage (like through an employer). If you delay without qualifying coverage, you’ll pay a late enrollment penalty that increases the longer you wait—and it lasts for life.

Still unsure what Medicare Part B covers or when you should enroll? The Sunnyside Medicare team is here to guide you through the process, at no cost to you.

Medicare Part B vs. Other Coverage

Many people ask, what does Medicare Part B cover compared to employer insurance or Medicaid?

• Employer insurance: You can delay Part B without penalty if you’re still working and covered by an active employer plan.

• Medicaid: If you qualify for both Medicare and Medicaid (known as “dual eligible”), Medicaid may help cover your Part B premiums and cost-sharing.

Understanding your full benefits ensures you don’t overpay—or miss critical coverage you’re entitled to.

Final Thoughts: What Does Medicare Part B Cover?

So, what does Medicare Part B cover in 2025? In short:

• Outpatient services and doctor visits

• Preventive care

• Mental health treatment

• Lab work and imaging

• Outpatient surgeries

• Medical equipment

• Home health care (if qualified)

If you’re in Michigan and asking what does Medicare Part B cover, the answer is: a lot—but not everything. That’s why reviewing your options with a trusted advisor is so important.

At Sunnyside Medicare, we help residents across Michigan understand their Medicare options and find a plan that truly fits their needs. Contact us for a free consultation today and make the most of your Medicare Part B benefits.

Frequently Asked Questions About Medicare Part B

What does Medicare Part B cover the most of?Medicare Part B primarily covers outpatient care, doctor visits, and preventive services. It also helps with lab tests, durable medical equipment, and some home health care.

Is there a limit to what Medicare Part B covers?Yes—what Medicare Part B covers is limited to medically necessary outpatient services. It doesn’t include routine dental, vision, hearing aids, or prescription drugs.

Where can I get help understanding what Medicare Part B covers in Michigan?The team at Sunnyside Medicare can walk you through what Medicare Part B covers in 2025, what’s excluded, and how to pair it with other plans to avoid gaps in coverage.