Research Data Assistance Center (ResDAC)

ResDAC (Research Data Assistance Center) provides technical assistance to researchers interested in CMS Medicare and Medicaid data. Various data sets are available; however, access is restricted to approved research requests. Public use data files (which contain no protected information) are available via data.CMS.gov.

Some of this data is provided in the Chronic Conditions Data Warehouse (CCW), which supports the CMS Virtual Research Data Center (VRDC) analytic environment. CMS data products are managed by the CMS Office of Enterprise Data and Analytics (OEDA).