Medicare is the government-run insurance program for those 65 and older, or certain people with disabilities or end-stage renal disease (permanent kidney failure).
What's covered on Medicare is based on federal and state laws, national decisions made by Medicare about whether something is covered, and local decisions made by companies who process Medicare claims and decide whether something is medically necessary and should be covered in their area.
Medicare has 4 different parts, which can be mixed and matched through different plans to give you the coverage that’s right for you.