Medicare is a federal health insurance program in the United States primarily for individuals aged 65 and older, though it also covers some younger people with disabilities or specific medical conditions. It is divided into different parts:

Part A (Hospital Insurance): Covers inpatient hospital stays, care in a skilled nursing facility, hospice care, and some home health care.

Part B (Medical Insurance): Covers certain doctors’ services, outpatient care, medical supplies, and preventive services.

Part C (Medicare Advantage): An alternative to Original Medicare (Parts A and B) offered by private companies, providing all Part A and B benefits and often including prescription drug coverage and additional services.

Part D (Prescription Drug Coverage): Helps cover the cost of prescription drugs.

Medicare provides essential healthcare coverage, helping to reduce the financial burden of medical expenses for eligible individuals.