Original Medicare is a fee-for-service health insurance program that has two parts: Part A and Part B. You typically pay a portion of the costs for the covered services you receive. Under Original Medicare, you don’t have coverage through a Medicare Advantage plan or another type of Medicare health plan. 

Original Medicare (Parts A and B) covers most medically necessary services and supplies in hospitals, doctors’ offices, and other healthcare facilities. In general, Original Medicare does not cover most vision, dental, and hearing services.