Medicare Part A covers inpatient hospital stays, care in a skilled nursing facility, hospice care, and some home health care services.
Medicare Part B covers certain doctors' services, outpatient care, medical supplies, and preventive services.
Medicare Part C, also known as Medicare Advantage, is an alternative to Original Medicare (Part A and Part B). It's offered by private insurance companies approved by Medicare. These plans often include coverage for prescription drugs, dental, vision, and wellness programs.
Medicare Part D plans are offered by private companies to help cover the cost of prescription drugs. Everyone with Medicare is eligible for this coverage.
Medigap is additional insurance that you buy from a private company to pay health care costs not covered by Original Medicare, such as co-payments, deductibles, and health care if you travel outside the U.S.