Medicare is federal health insurance for anyone age 65 and older, and some people under 65 with certain disabilities or conditions. Medicaid is a joint federal and state program that provides health coverage for some people with limited income and resources.
On July 30, 1965, President Lyndon B. Johnson signed the Medicare and Medicaid Act, also known as the Social Security Amendments of 1965, into law. It established Medicare, a health insurance program for the elderly, and Medicaid, a health insurance program for people with limited income.