Understanding Medicare Part B: What It Covers, Costs, and When to Enroll

If you’re approaching 65 or helping a loved one prepare for Medicare, learning about Medicare Part B is an important step. While Medicare can feel overwhelming at first, getting clear and simple information can make the process feel more manageable—and even empowering.
This post will gently walk you through what Medicare Part B covers, how much it costs, who needs it, and when to enroll. Our goal is to help you make informed decisions with confidence and peace of mind.

What Is Medicare Part B?

Medicare Part B is the part of Original Medicare that helps cover outpatient medical services .If Medicare Part A is hospital insurance, think of Part B as your doctor and medical insurance .
Together, Part A and Part B form the foundation of your Medicare coverage.

What Does Medicare Part B Cover?

Medicare Part B helps pay for services that are medically necessary to diagnose or treat a condition, as well as many preventive services.

Common Services Covered:

  • Doctor visits (primary care and specialists)
  • Outpatient surgery and diagnostic tests
  • Preventive screenings (e.g., mammograms, colonoscopies, diabetes screenings)
  • Mental health outpatient services
  • Durable medical equipment (like walkers or oxygen tanks)
  • Ambulance services (emergency and some non-emergency)
  • Limited home health care
It’s important to note that Medicare Part B does not cover :
  • Prescription drugs (unless administered in a clinical setting)
  • Most dental, vision, and hearing care
  • Long-term or custodial care

How Much Does Medicare Part B Cost?

Premiums

Most people pay a monthly premium for Part B. In 2025, the standard Part B premium is $185.00 per month .
If your income is above a certain level, you may pay more due to IRMAA (Income-Related Monthly Adjustment Amount) .

Deductibles and Coinsurance

Annual deductible: $257 in 2025 After meeting your deductible, you typically pay 20% of the Medicare-approved amount for services and supplies
Unlike some employer health plans, Medicare Part B does not have an out-of-pocket maximum , which is why many people consider Medicare Supplement (Medigap) insurance to help with these costs.

Who Needs Medicare Part B?

Almost everyone becomes eligible for Medicare at age 65, but whether or not you need to enroll in Part B right away depends on your current situation.

You Should Enroll in Part B If:

  • You’re retired or not covered by a creditable employer health plan
  • Your employer has fewer than 20 employees
  • You’re receiving Social Security benefits

You May Be Able to Delay If:

You or your spouse is actively working and covered by a group health plan from an employer with 20 or more employees
Delaying Part B without having creditable coverage can lead to late enrollment penalties that last for life.

When and How to Enroll in Part B

Your Initial Enrollment Period (IEP) is your first chance to sign up for Medicare:
  • It lasts for 7 months, starting 3 months before your 65th birthday month, including your birthday month, and ending 3 months after .
If you’re not automatically enrolled, you can sign up:
  • Online at ssa.gov/medicare
  • By calling Social Security at 1-800-772-1213
  • In person at your local Social Security office
If you delayed enrollment because you had creditable employer coverage, you can use a Special Enrollment Period (SEP) once that coverage ends.

How Part B Works with Other Medicare Options

Part B is just one piece of the puzzle. Once you have Part A and B, you can choose to:
  • Stay with Original Medicare and add:
    • A Part D drug plan
    • A Medicare Supplement (Medigap) plan
  • Switch to a Medicare Advantage Plan (Part C) that bundles A, B and often D, along with extra benefits
Your decision will depend on your healthcare needs, budget, and preferred providers.

Final Thoughts: Medicare Part B Gives You Access to Everyday Care

While Medicare Part A covers you in the hospital, Medicare Part B gives you access to the care you need to stay healthy — from doctor visits to screenings and outpatient services. It’s an essential part of your Medicare foundation.
Taking time to understand how Part B works—and how it fits with other Medicare options—will help you feel more prepared as you approach 65.
If you’re unsure about your next steps, you can:
  • Visit Medicare.gov
  • Speak with a licensed Medicare advisor
  • Reach out to your State Health Insurance Assistance Program (SHIP) for free, unbiased help
Does Medicare Part B cover prescription Medications?
No, You will need a Part D Prescription Drug Plan.
Yes, if you are paying more than the base amount and your income is lower than 2 years prior you can submit a “Life Changing Event Form” and get your Part B premium lowered.
No, the Part B deductible is an annual deductible and paid only once per calendar year.

Mike Miligi- Owner

For over 10 years, Mike has been assisting Seniors and other Medicare-eligible individuals in understanding the ins and outs of Medicare and Medicare Health Insurance options, including Medicare Advantage Plans(Part C), Medicare Supplement Plans(Medigap), Prescription Drug Plans(PartD), and Dental and Vision programs.
Mike is Licensed in seven States and Certified with 11 Insurance Carriers. He has helped thousands of individuals decide on the best course of action for their particular Health Insurance needs. Because Mike is an Independent Medicare Health Insurance Broker, he works for the client, not the Insurance Carriers, and is able to provide his clients with accurate and unbiased Health Insurance options.
Mike recertifies with CMS(The Centers for Medicare and Medicaid Services) annually, regularly completes Continuing Education Courses required by individual State Insurance Departments, and keeps abreast of industry trends and standards to offer his clients the most up-to-date information.

Choosing the Right Medicare Coverage

Selecting the best Medicare coverage depends on factors like your healthcare needs, budget, and preferred providers. You can choose between:
  • Original Medicare (Parts A & B): Allows you to see any doctor or
    hospital that accepts Medicare but does not include prescription drug
    coverage (Part D) or additional benefits.
  • Medicare Advantage (Part C): Offers bundled coverage with
    potential extra benefits but may require using a network of providers.
  • Medigap (Medicare Supplement Insurance): Helps cover
    out-of-pocket costs not covered by Original Medicare, such as
    copayments and deductibles.

Key Medicare Enrollment Periods

It is crucial to enroll in Medicare at the right time to avoid penalties and ensure continuous coverage:
  • Initial Enrollment Period (IEP): A seven-month window starting
    three months before your 65th birthday month.
  • General Enrollment Period (GEP): From January 1 to March 31
    each year for those who missed their IEP.
  • Annual Election Period (AEP): From October 15 to December 7,
    allowing you to switch or enroll in Medicare Advantage and Part D
    plans.
  • Open Enrollment Period(OEP): From January 1 to March 31 for
    those who missed AEP and want to make certain changes.
  • Special Enrollment Period(SEP): Can be used anytime during the
    calendar year for those that meet certain criteria such as moving to a
    new service area.

Finding Help with Medicare

Understanding Medicare can be complex, but you don’t have to do it alone. Licensed Insurance Brokers, Medicare.gov, and state health assistance programs can provide guidance tailored to your specific needs.
By taking the time to explore your Medicare options, you can make informed decisions that ensure you receive the healthcare coverage that best suits your lifestyle and budget.
Do I have to sign up for Medicare?
It depends upon your current coverage. If you are employed and your employer has over 20 employees then you can delay signing up for Medicare and avoid penalties.
No, You will have to enroll in a stand alone Part D plan or a Medicare Advantage Plan(Part C) to get coverage.
There are no networks with Medicare and most doctors and hospitals accept it. However, Medicare does not cover 100% of services so a Medicare Supplement or Medicare Advantage plans is advisable.

Mike Miligi- Owner

For over 10 years, Mike has been assisting Seniors and other Medicare-eligible individuals in understanding the ins and outs of Medicare and Medicare Health Insurance options, including Medicare Advantage Plans(Part C), Medicare Supplement Plans(Medigap), Prescription Drug Plans(PartD), and Dental and Vision programs.
Mike is Licensed in seven States and Certified with 11 Insurance Carriers. He has helped thousands of individuals decide on the best course of action for their particular Health Insurance needs. Because Mike is an Independent Medicare Health Insurance Broker, he works for the client, not the Insurance Carriers, and is able to provide his clients with accurate and unbiased Health Insurance options.
Mike recertifies with CMS(The Centers for Medicare and Medicaid Services) annually, regularly completes Continuing Education Courses required by individual State Insurance Departments, and keeps abreast of industry trends and standards to offer his clients the most up-to-date information.
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