Medicare Part B: Medical Insurance
Understanding Your Coverage for Doctor Visits and Outpatient Care
What Is Medicare Part B?
Medicare Part B is the component of Medicare that provides medical insurance — covering the costs associated with doctor visits, outpatient care, preventive services, and medically necessary supplies and equipment. Together with Part A, Part B forms the foundation of Original Medicare.
While Part A focuses primarily on inpatient and hospital care, Part B covers the everyday medical services that keep you healthy and address your ongoing health care needs outside of a hospital setting.
Who Is Eligible for Medicare Part B?
You are eligible for Medicare Part B if you are:
● Aged 65 or older and a United States citizen or permanent legal resident who has lived in the country for at least five consecutive years
● Under 65 and have received Social Security Disability Insurance (SSDI) for 24 months or longer
● Diagnosed with End Stage Renal Disease or ALS at any age
Unlike Part A, Medicare Part B requires most beneficiaries to pay a monthly premium regardless of their work history.
What Does Medicare Part B Cover?
Medicare Part B covers two broad categories of services — medically necessary services and preventive services.
Medically Necessary Services These are services or supplies that are needed to diagnose or treat a medical condition and meet accepted standards of medical practice. Part B covers:
● Doctor visits — Office visits with your primary care physician and specialists
● Outpatient hospital care — Services received without being formally admitted to a hospital
● Emergency room visits — Care received in a hospital emergency department
● Ambulance services — When other transportation could endanger your health
● Mental health services — Outpatient therapy, counseling, and psychiatric care
● Lab tests and diagnostic imaging — Blood tests, X-rays, MRIs, and CT scans
● Durable medical equipment — Wheelchairs, walkers, hospital beds, and oxygen equipment
● Outpatient surgery — Surgical procedures that do not require an overnight hospital stay
● Kidney dialysis — For individuals with End Stage Renal Disease
● Chemotherapy and radiation — Outpatient cancer treatments
● Physical, occupational, and speech therapy — Outpatient rehabilitation services
Preventive Services Part B places a strong emphasis on prevention and early detection. Covered preventive services include:
● Annual Wellness Visit — A yearly check-in with your doctor to develop or update a personalized prevention plan
● Welcome to Medicare Preventive Visit — A one-time visit during your first 12 months of Part B enrollment
● Cardiovascular screenings — Cholesterol and blood pressure screenings
● Cancer screenings — Mammograms, colonoscopies, cervical cancer screenings, and prostate cancer screenings
● Diabetes screenings and self-management programs
● Flu, pneumonia, and hepatitis B vaccines
● Bone density measurements — For individuals at risk of osteoporosis
● Depression screenings
● Obesity counseling
Many preventive services are covered at no cost to you when received from a Medicare-participating provider.
What Does Medicare Part B Cost?
Unlike Part A, Medicare Part B requires beneficiaries to pay a monthly premium as well as other cost-sharing responsibilities:
Cost Type
Amount
Standard Monthly Premium
Annual Deductible & Coinsurance
Hospital Outpatient Services
$202.90 each month (or higher depending on your income).
$283. After your deductible is met, you typically pay 20% of the Medicare-approved amount for most doctor services (including most doctor services while you’re a hospital inpatient), outpatient therapy, and durable medical equipment.
20% coinsurance after deductible
Important Note on Income-Related Adjustments Higher income beneficiaries may pay more than the standard Part B premium. This adjustment is known as the Income Related Monthly Adjustment Amount — or IRMAA. If your modified adjusted gross income exceeds certain thresholds, your Part B premium will be higher than the standard rate. Your income from two years prior is used to determine your IRMAA.
The Part B Deductible and Coinsurance
Once you meet your annual Part B deductible, Medicare typically pays 80% of the Medicare-approved amount for covered services. You are responsible for the remaining 20% coinsurance — with no out of pocket maximum under Original Medicare.
This 20% coinsurance can add up quickly — particularly for individuals who require frequent medical care or face a serious illness. This is one of the primary reasons many beneficiaries choose to supplement their Original Medicare coverage with a Medigap policy or a Medicare Advantage plan.
Enrolling in Medicare Part B
Enrolling in Part B at the right time is critically important. Here is what you need to know:
Initial Enrollment Period Your Initial Enrollment Period is a seven-month window that includes:
● The three months before your 65th birthday month
● Your birthday month
● The three months after your 65th birthday month
Enrolling during this window ensures your coverage begins on time and helps you avoid late enrollment penalties.
Late Enrollment Penalty If you do not enroll in Part B when first eligible and do not have qualifying coverage elsewhere, you may face a permanent late enrollment penalty. Your monthly premium will increase by 10% for each full 12-month period that you were eligible but did not enroll. This penalty applies for as long as you have Part B.
What Part B Does Not Cover
It is equally important to understand what Part B does not cover:
● Routine dental care — Cleanings, fillings, extractions, and dentures
● Routine vision care — Eye exams for glasses or contact lenses
● Hearing aids and related fittings
● Long term custodial care
● Cosmetic surgery
● Acupuncture — With limited exceptions
● Prescription drugs — Most outpatient medications are covered under Part D
● Care received outside the United States — With very limited exceptions
How Part B Works with Other Coverage
Part B works alongside other components of Medicare to provide well-rounded coverage:
● Part A covers your inpatient hospital and skilled nursing facility care
● Part D covers your outpatient prescription medications
● Medigap can cover your Part B deductible, coinsurance, and other out of pocket costs
● Medicare Advantage (Part C) bundles Part A and Part B — and often Part D — into a single comprehensive private plan
Ready to Take the Next Step?
Medicare Part B is the cornerstone of your everyday health care coverage in retirement. Understanding what it covers — and what it does not — is essential to building a complete and cost-effective Medicare strategy.
At JMomentum Consulting, we are here to help you understand your Part B benefits, avoid costly enrollment mistakes, and identify the supplemental coverage options that best fit your needs and your budget.