Part A covers inpatient hospital stays, care in a skilled nursing facility, hospice care, and some home health care. Part B covers certain doctors' services, outpatient care, medical supplies, and preventive services. Part C is a type of Medicare health plan offered by a private company that contracts with Medicare. Medicare Advantage plans provide all of your Part A and Part B benefits. Part D adds prescription drug coverage to Original Medicare and some Medicare cost plans and private fee-for-service plans.