Medicare is the federally funded program that provides health insurance for the elderly, persons with end-stage renal disease, and some disabled. For persons age 65 and over, 97 percent are eligible for Medicare. Almost all Medicare beneficiaries have Part A coverage that includes hospital, skilled-nursing facility, hospice and some home health care. Information about Medicare eligibility and enrollment is available for all persons included in the SEER-Medicare data (both cancer and non-cancer cases). Medicare claims (bills) are available only for persons with fee-for-service coverage.