Data & research

Learn about the data, systems, and research behind the programs that provide health coverage to more than 100 million people.

Popular for students and researchers

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Data.CMS.gov

Access data about our programs

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Data.Medicaid.gov

Access research and datasets using open data

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Provider Data Catalog

Explore and download Medicare provider data

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ResDAC

Find, request and use CMS Data

Data & Research Topics

Data & Research Topics

CMS information technology Computer data & systems Files for order Monitoring programs Research Statistics, trends & reports Archives

CMS information technology

Access to CMS Data & Application CMS Contractor Data Communications Support Policy see more Data Architecture & Engineering Data Administration's Data Architecture & Engineering Overview Page. see more CIO Resource Library Overview

This webpage provides an overview of CIO documents, including policies, standards, directives, guidelines, and procedures. see more

Database Administration CMS Database Administration. see more CMS' Identity Management

CMS' Identity Management CMS' Identity Management (IDM) system is an established, enterprise-wide, identity management solution. IDM is leveraged by CMS business… see more

Enterprise Architecture

CMS Enterprise Architecture Strategy Group. EA definition and HHS workgroups that CMS participates. see more

Enterprise IT Investment Management

The CMS Integrated IT Investment & System Life Cycle Framework can be viewed as a hierarchy. see more

HIPAA Eligibility Transaction System (HETS)

The HIPAA (Health Insurance Portability and Accountability Act) Eligibility Transaction System (HETS) allows you to check Medicare beneficiary eligibility data in real-time. Use HETS to prepare… see more

CMS Information Security and Privacy Overview

"Holding Ourselves to a Higher Standard"What is the Information Security and Privacy Group (ISPG)?The Information Security and Privacy Group (ISPG) is within the CMS Office of Information Technology … see more

Section 508 and CMS overview of section 508 see more SPARC Home

The Strategic Partners Acquisition Readiness Contract (SPARC) is a cost-effective, innovative solution for procuring information technology (IT) professional services from a pool of CMS… see more

TLC Overview

Welcome to the Target Life Cycle! TLC Overview The TLC is CMS's system development life cycle governance framework that promotes business flexibility and replaces point-in-time… see more

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Computer data & systems

Electronic Submission of Medical Documentation (esMD)

The Medicare Fee-for-Service (FFS) Compliance programs prevent, reduce, and measure improper payments through medical review. We provide a number of programs to educate and support Medicare… see more

Medicaid Data Sources - General Information Medicaid Data Sources - General Information see more EMDI Overview

Electronic Medical Documentation Interoperability (EMDI) Program The Centers for Medicare & Medicaid Services (CMS) Electronic Medical Documentation Interoperability (EMDI) Initiative… see more

Medicaid Information Technology Architecture (MITA)

The Medicaid Information Technology Architecture (MITA) pages are currently being migrated to the Medicaid.gov website. In the interim, please use the following links from the CMS.gov Archive… see more

Minimum Data Set 3.0 Public Reports Minimum Data Set 3.0 Public Reports see more Transformed Medicaid Statistical Information System See all ( 6 )

Files for order

Data Disclosures and Data Use Agreements (DUAs) Centers for Medicare & Medicaid Services (CMS) Data Use Agreements see more Files for Order - General Information

The Centers for Medicare & Medicaid Services (CMS) makes certain data files available for order. These data files include information collected through the operation of the Medicare and… see more

Identifiable Data Files Identifiable data files overview see more Limited Data Set (LDS) Files

The Centers for Medicare & Medicaid Services (CMS) makes Limited Data Set (LDS) files available to researchers as allowed by federal laws and regulations as well as CMS policy. LDS files contain… see more

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Monitoring programs

Improper Payments Measurement Programs

Background The Payment Integrity Information Act of 2019 (PIIA) (Public Law No. 116-117) requires government agencies to identify, report, and reduce improper payments in the government's programs… see more

Medicare Fee-for-Service Compliance Programs

CMS recognizes that it is important for stakeholders to understand how CMS anticipates performing medical review after the Public Health Emergency (PHE) has ended. Below is an FAQ that addresses how… see more

Medicare Advantage Risk Adjustment Data Validation Program

About the ProgramProtecting our programs' sustainability for future generations by serving as a responsible steward of public funds is a CMS Strategic pillar. The Medicare Advantage Risk Adjustment… see more