Find, Request and Use CMS Data

News Updates from CMS
CMS Announces Important Changes to Data Request and Access Policies for Researchers

The Centers for Medicare & Medicaid Services (CMS) has announced two changes to the current research data request and access policies.

News Updates from CMS
Acute Hospital Care at Home (AHCAH) Data Now Available

CMS is pleased to announce the availability of a new set of Research Identifiable Files (RIFs) for the Acute Hospital Care at Home (AHCAH) waiver program.

News Updates from CMS
ResDAC is now your one-stop shop for all CMS Research Data Use Agreement requests!

The Research Data Assistance Center (ResDAC) is expanding its services to become your comprehensive resource for all research data use agreement (DUA) needs.

News Updates from CMS
CMMI Model Data Sharing (CMDS) Initiative Makes New Model Participation Data Available to Researchers

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

News Updates from CMS
Updated 2021 Medicare Advantage (Part C) Encounter Data Now Available

CMS is pleased to announce the availability of updated 2021 Medicare Advantage (Part C) Encounter data.

Find the CMS data file you need

CMS data files are organized by data category and CMS program. Select an item from the options below to begin your search

Browse the CMS data files available

Get the latest information on existing and upcoming data file availability.

Upcoming Events

-
paper exchanging between hands

Understanding the origin, structure and contents of the Medicare Part D data is essential to…

-
audience members raising hands in presentation

Claims for a Medicare beneficiary enrolled in Medicare Advantage (also known as “Part C”) are…

-
women looking at data on laptop

Medicaid TAF (T-MSIS Analytic File) data are optimized for researchers to analyze enrollment,…