Medicare is a federal health insurance program for people who are 65 or older, certain younger people with disabilities, and people with End-Stage Renal Disease (ESRD).

Medicare covers a range of medical services, including hospital stays, doctor visits, preventive care, and prescription drugs. It also covers some medical equipment and supplies, such as wheelchairs and blood sugar monitors.

Medicaid is a joint federal and state program that helps with healthcare costs for people with limited income and resources. It covers medical services, including hospital stays, doctor visits, and prescription drugs, as well as some long-term care services.

Eligibility for Medicaid varies by state, but generally includes people with low income, children, pregnant women, and people with disabilities. Some states also cover adults without dependent children.

Medicare and Medicaid beneficiaries have certain legal rights, such as the right to receive medical care that meets certain standards of quality and the right to appeal a denial of coverage or payment. They also have the right to choose their healthcare providers and to receive information about their medical conditions and treatments.

The benefits of Medicare and Medicaid include access to healthcare services and prescription drugs at a lower cost than many private insurance plans. They also provide financial protection against high medical expenses and can help people with chronic conditions or disabilities receive the care they need.