Original Medicare consists of Medicare Part A (hospital coverage) and Medicare Part B (medical coverage). It’s a federal health insurance program for individuals 65 or older; under 65 who have a qualifying disability, and of any age with a diagnosis of End-Stage Renal Disease (ESRD) or Amyotrophic Lateral Sclerosis (ALS, also called Lou Gehrig’s disease).
Medicare Part A is hospital coverage. It helps pay for hospital stays and inpatient care in hospitals.
Medicare Part B is medical coverage. It helps pay for doctor visits and outpatient care.