Hospital Admission: Medicare medicaid In the United States, Medicare(医疗保险) is a national social insurance program, administered by the U.S. federal government since 1966 currently using about 30 private insurance companies across the United States. Medicare provides health insurance for Americans aged 65 and older who have worked and paid into the system. It also provides health insurance to younger people with disabilities, end stage renal disease and amyotrophic lateral sclerosis Medicaid(医疗补助) in the United States is a social health care program for families and individuals with low income and limited resources. The Health Insurance Association of America describes Medicaid as a"government insurance program for persons of all ages whose income and resources are insufficient to pay for health care• In the United States, Medicare（医疗保险）is a national social insurance program, administered by the U.S. federal government since 1966, currently using about 30 private insurance companies across the United States.Medicare provides health insurance for Americans aged 65 and older who have worked and paid into the system. It also provides health insurance to younger people with disabilities, end stage renal disease and amyotrophic lateral sclerosis. • Medicaid （医疗补助）in the United States is a social health care program for families and individuals with low income and limited resources. The Health Insurance Association of America describes Medicaid as a "government insurance program for persons of all ages whose income and resources are insufficient to pay for health care". Hospital Admission: Medicare & Medicaid