CMS Releases New Medicaid and CHIP Data for Research

The Centers for Medicare & Medicaid Services (CMS) is excited to announce the availability of new data from the Medicaid and CHIP Transformed Medicaid Statistical Information System (T-MSIS). To facilitate research, CMS is releasing detailed T-MSIS Analytic Files (TAFs), as well as supplemental state-level data quality briefs and technical documentation that further explain the data. Today’s release includes data from the years 2014, 2015, and 2016. TAFs for 2017 and 2018 are expected to be released in 2020.

All external researchers who want to obtain access to the TAFs should contact the CMS Research Data Assistance Center (ResDAC). Researchers who are approved for access to the TAFs will be required to sign a CMS data use agreement that contains strict beneficiary privacy and data security requirements. To learn more, visit the ResDAC website. 

Relevant Links:

• Press release
• Fact sheet
• Additional Details on T-MSIS Data
• TAF Data Quality Briefs