Research Data Assistance Center

1-888-9RESDAC
1-888-973-7322
resdac@umn.edu

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The Research Data Assistance Center (ResDAC) is a CMS contractor that provides free assistance to academic, government and non-profit researchers interested in using Medicare and/or Medicaid data for their research. ResDAC is staffed by a consortium of epidemiologists, public health specialists, health services researchers, biostatisticians, and health informatics specialists from the University of Minnesota.

Questions about Medicaid & Medicare data?

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What's New

ATTENTION: Proposed Part D Public Use Files

CMS is considering developing several different Public Use Files that could be used for various types of studies.  CMS is interested in receiving comments from the public about these proposed Public Use Files.  Comments may be submitted via ResDAC email. When you submit comments, please note which file(s) you are commenting on (e.g., PUF File 1 or PUF File 2A, etc.); if you are offering a suggestion for a new file, please indicate so and describe the research this file could support.

• Proposed Part D Public Use Files

Additional information:

• Medicare Part D data final regulation
• CMS Part D Claims Data Information

New Limited Data Set (LDS) File Available through CMS:
Ambulatory Surgical Center (ASC) Payment System