Most health care for the U.S. population 65 and older is publicly provided through Medicare and Medicaid. Despite the massive expenditures of these systems, little is known about how redistributive they are. Using data from the Health and Retirement Study matched to administrative Medicare, Medicaid, and Social Security earnings records, we estimate the distribution of lifetime Medicare and Medicaid benefits received and the distribution of lifetime taxes paid to finance these benefits. For the cohort who turned 65 between 1999 and 2004, we find that benefits are greater among those with high income, in large part because they live longer. Nonetheless, high-income people pay more in the way of taxes. Middle-income households gain the most from these programs as these people live long yet pay modest taxes. All income groups gain from these programs: This cohort’s lifetime tax contribution did not cover the medical benefits it received. This deficit is paid by younger cohorts.