Medicare Part A, Hospital Insurance, covers the most expensive parts of medical care. The coverage revolves around Hospitalization and expenses related to inpatient care.
Medicare Part B covers preventative health care, doctor's fees and outpatient hospital care. Part B also includes durable medical equipment and some home health care services.
Medicare Part C is an alternative program to Original Medicare. Insurance companies that are approved by the government to provide Medicare coverage operate Advantage Plans.
Medicare Part D, known as Drug Plans, provides prescription drug coverage plans to cover the cost of regular medications not covered by Medicare Part A or Part B.