Generally, Medicare is for people 65 or older. You may be able to get Medicare earlier if you have a disability, End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant), or ALS (also called Lou Gehrig’s disease). Medicare has four parts: Part A (Hospital Insurance) Part B (Medicare Insurance)
https://www.hhs.gov/answers/medicare-and-medicaid/who-is-eligible-for-medicare/index.html

