If you're a U.S. citizen or permanent resident age 65 or older, or have a disability or End-Stage Renal Disease (ESRD), you're likely eligible for Medicare, a federal health insurance program. But what exactly does Medicare cover?

Like many people, you might be confused about what Medicare does and doesn't cover. So, we've put together this comprehensive guide to help you understand the services that Original Medicare (Part A and Part B) typically covers, and where you might need supplemental coverage.

Medicare Part A: Hospital Insurance
Medicare Part A is your hospital insurance, covering inpatient care in hospitals, skilled nursing facilities, and hospice care. Here are some specific services it typically covers:

Inpatient Care in a Hospital
Medicare Part A helps cover the cost of care you get in a hospital. This includes semi-private rooms, meals, nursing care, and other hospital services and supplies.

However, there are certain costs you'll need to pay, like a deductible for each benefit period and coinsurance for each day you're in the hospital after a certain number of days.
Care in Skilled Nursing Facility
After a hospital stay of at least 3 days, Medicare Part A may cover your care in a skilled nursing facility. This could include short-term skilled nursing or rehabilitation services you need after you leave the hospital.

Again, there are certain costs you'll need to pay, including a deductible and coinsurance for each benefit period.
Medicare Part B: Medical Insurance
Medicare Part B is your medical insurance, covering medically necessary services and preventive services you get from healthcare providers. Here are some services it typically covers:

Medically Necessary Services
Medicare Part B covers a wide range of medically necessary services, such as doctor visits, laboratory services, x-rays, and other diagnostic tests, and some outpatient hospital services.









However, you'll usually pay a deductible before coverage begins, and then you'll pay a coinsurance for each service, typically 20% after you meet the deductible.
Preventive Services
Medicare Part B also covers preventive services, such as flu shots, Pap tests, Mammograms, and screenings for diabetic equipment. These services help prevent, detect, or manage a health condition.
The good news is that many preventive services are fully covered, meaning you pay nothing out-of-pocket for them.
Services Not Covered by Medicare (Original Medicare)
Now that we've discussed what Medicare covers, let's briefly look at some services that Medicare does not cover, where you might need supplemental coverage or secondary insurance:
Medicare Advantage Plans
Medicare Advantage (Part C) plans are offered by private companies approved by Medicare. They cover all the services that Original Medicare covers, and often more, such as vision, hearing, and dental services.
Medigap Policies
Medigap policies (Medicare Supplement Insurance) help pay for certain out-of-pocket costs that Medicare doesn't cover, like copayments, coinsurance, and deductibles. Some Medigap policies also offer some travel coverage.
Medicare can be complex, but understanding the basics of what it covers can help you make informed decisions about your healthcare. If you're unsure about what's covered, it's always a good idea to contact Medicare or a local Medicare advisor for advice tailored to your situation.