Often people get confused by which health insurance program they are covered. After all both names sound similar, both cover similar things, so how is the average person supposed to know the difference?
Medicare is a federal program for people who are 65 and older or under 65 and have a disability regardless of your income.
Medicaid is a state program for people under certain income limits(very low income).
Some people have both medicare and medicaid. These people are called "dual eligible" When this happens both programs work together to provide additional coverage.