Medicare is the national health insurance program.
It is designed for seniors (people 65 and older), and for eligible people who are under 65 and disabled, including people with end-stage renal disease (ESRD) which is a permanent kidney failure requiring dialysis or a kidney transplant.
Medicare was not intended to pay 100% of medical bills. Its purpose is to help you pay a portion of medical expenses.
You also pay a portion of your medical expenses, which includes deductibles, co-payments, and services not covered by Medicare.
There are two parts to Medicare: Part A and Part B.
Part A is hospital insurance. It helps you pay for inpatient hospital care, limited coverage in a skilled nursing facility, and full coverage for eligible home health care and hospice care.
Part B is medical insurance. It helps you pay for doctor services, outpatient hospital services, durable medical equipment, physical and occupational therapists, some home health care and other services not covered by Part A.
You do not have to pay a monthly payment (or premium) for Part A, if you or your spouse paid Medicare taxes while working.
If you did not pay Medicare taxes while you worked, you may be able to buy Part A. Part B, on the other hand, is optional, and requires a monthly premium.
The Centers of Medicare and Medicaid Services (CMS) is the federal agency that administers Medicare.