Centers for Medicare and Medicaid Services
Collects administrative data associated with oversight of the Medicare and Medicaid programs; studies the quality of care delivered by those programs; and sponsors a survey of current Medicare beneficiaries to obtain data on health care utilization and expenditures, including expenditures not covered by Medicare, the sources of health care coverage and payment, and the assets, income, health, functional status, work history, and family support systems of the Medicare population.
(CMS) Dept of Health and Human Services