Medicare is a federal health insurance program in the United States that covers certain medical expenses for eligible individuals. Here is what is covered by Medicare:

• Medicare Part A: This covers inpatient hospital stays, care in a skilled nursing facility, hospice care, and some home health care.

• Medicare Part B: This covers certain doctors services, outpatient care, medical supplies, and preventive services.

• Medicare Part C (Medicare Advantage): This is an alternative to Original Medicare and provides the same coverage as Parts A and B, and often includes additional benefits such as vision, hearing, and dental services.

• Medicare Part D: This is a prescription drug coverage plan that helps cover the cost of prescription drugs.

It is important to note that Medicare does not cover all medical expenses. Here are some items and services that are not covered by Medicare Parts A and B:

• Long-term care (also called custodial care)
• Most dental care
• Eye exams related to prescribing glasses
• Dentures
• Cosmetic surgery
• Acupuncture
• Hearing aids and exams for fitting them
• Routine foot care

However, some of these services may be covered by Medicare Advantage Plans or Medicare Supplement Insurance (Medigap) policies.