Medicare is the federal health insurance program for people who are 65 or older, certain younger people with disabilities, and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD).
Original Medicare is health coverage managed by the federal government. Generally, there is a cost for each service. In most cases, you can go to any doctor, other health care provider, hospital, or another facility that is enrolled in Medicare and is accepting new Medicare patients.
If you are receiving Social Security benefits before turning 65, you should automatically receive notification of your enrollment in Medicare shortly before your 65th birthday or your 25th month of disability. Other individuals must apply by calling or visiting their Social Security office to receive Medicare.