Find, Request and Use CMS Data

CMS is pleased to announce the release of the enhanced Master Beneficiary Summary File (MBSF) Base A/B/C/D Version 2 (V2) file starting with the 2023 enrollment year. Additionally, the MBSF Other Chronic and Potentially Disabling Conditions (OTCC) file has also been improved.

The Centers for Medicare & Medicaid Services (CMS) continues to evaluate our research data request and access policies, processes, and tools to ensure we are maximizing protections for controlled unclassified information (e.g., personally identifiable information and protected health information) while also enabling important research using CMS data.

CMS is pleased to announce the availability of a new Research Identifiable File (RIF) for the Center for Medicare and Medicaid Innovation (Innovation Center) Accountable Health Communities (AHC) Model.

CMS is pleased to announce the availability of Research Identifiable Files (RIFs) for one additional CMS Innovation Center model.

CMS is pleased to announce that updated and preliminary Medicaid T-MSIS Analytic Files (TAFs) for service years 2022 and 2023, respectively, are now available.