Medicaid is a means-tested, state administered health insurance program for individuals below certain income thresholds predetermined by the state in which they reside. The federal government establishes coverage requirement guidelines for the categorically needy (e.g.,
children, pregnant women); medically needy (e.g., individuals with income above the threshold, but who have a large amount of medical bills); and, special groups. Although the federal government determines the medical services that will be covered and paid for by the federal portion of the program, Medicaid programs vary widely from state to state as the state governments are free to add additional services or expand eligibility to additional groups.