Medicare A and B Basics
Understanding Medicare can feel overwhelming at first, but it becomes much simpler once you break it down into the two core parts of Original Medicare: Part A and Part B. These two components form the foundation of Medicare coverage and help beneficiaries access essential hospital and medical care. Whether you’re approaching age 65 or helping a loved one navigate enrollment, here’s the Medicare A and B Basics.
What Medicare Part A Covers (Hospital Insurance)
Medicare Part A is often called hospital insurance because it helps cover care you receive in a hospital or similar inpatient setting. Most people receive Part A premium-free as long as they or their spouse worked and paid Medicare taxes for at least 10 years.
Part A covers:
Inpatient Hospital Care
This includes semi-private rooms, meals, nursing care, medications given in the hospital, and other hospital services. Part A does not cover private rooms unless medically necessary.
Skilled Nursing Facility (SNF) Care
Part A may cover care in a skilled nursing facility after a qualifying three-day inpatient hospital stay. This is not long-term custodial care, but medically necessary rehabilitation services such as physical or occupational therapy.
Home Health Care
If ordered by a doctor and medically necessary, Part A can help cover intermittent skilled nursing care, physical therapy, or speech therapy delivered in the home.
Hospice Care
For patients with a terminal illness and a prognosis of six months or less, Part A provides comprehensive hospice benefits, including pain relief, symptom management, and family support.
Part A Costs
Most beneficiaries pay no monthly premium, but deductibles and coinsurance still apply. For example, there is a per-benefit-period deductible for hospital stays and daily coinsurance after certain lengths of inpatient care.
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What Medicare Part B Covers (Medical Insurance)
Medicare Part B is medical insurance that covers outpatient and physician services. Unlike Part A, everyone pays a monthly premium for Part B, and higher-income beneficiaries may pay more.
Part B covers:
Doctor Visits
This includes primary care, specialists, and certain preventive screenings and exams.
Outpatient Services
Such as X-rays, lab work, outpatient surgeries, and emergency room or urgent care services (when not admitted as an inpatient).
Durable Medical Equipment (DME)
Items like walkers, wheelchairs, CPAP machines, and home oxygen equipment.
Preventive Care
Medicare Part B provides a wide range of preventive services at no extra cost when using participating providers; annual wellness visits, vaccines, mammograms, colonoscopies, and more.
Mental Health Services
Includes outpatient therapy, psychiatric evaluations, and some partial hospitalization programs.
Part B Costs
Beneficiaries pay a standard monthly premium, an annual deductible, and typically 20% coinsurance for most covered services. Part B has no out-of-pocket maximum unless you pair it with a Medigap plan or choose a Medicare Advantage plan.
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How Medicare A & B Work Together
Part A and Part B complement each other to provide broad medical coverage. Part A focuses on inpatient care, while Part B handles outpatient and ongoing medical needs. Many people choose to add:
- A Medicare Supplement (Medigap) to reduce out-of-pocket costs
- A Part D prescription drug plan
- Or a Medicare Advantage plan that bundles A, B, and often D into one
Your choice depends on your budget, health needs, and preferred style of coverage.
Understanding the basics of Medicare Parts A and B is the first step in building reliable coverage for your healthcare needs. By knowing what each part covers and what it doesn’t; you can make confident decisions as you prepare for enrollment or compare additional coverage options