A public health insurance program for some people or families with limited incomes and resources, including children, pregnant women, older adults, and people with disabilities. People who receive Medicaid have most or all of their health care services paid for by US federal, state, and local governments. Each state government runs its own Medicaid program using federal guidelines, so Medicaid rules and benefits can differ from state to state. To be eligible for Medicaid, a person or family must meet the Medicaid rules of the state in which they live.