Transformed - Medicaid Statistical Information System (T-MSIS) (CMS-R-284)

State data are reported by the federally mandated electronic process, known as MSIS is currently collecting eligibility and claim data in 5 separate files. These data are the basis of actuarial forecasts for Medicaid service utilization and costs; of analysis and cost savings estimates required for legislative initiatives relating to Medicaid and for responding to requests for information from CMS components, the Department, Congress and other customers. The expanded version of MSIS is now referred to as TMSIS will incorporate 3 additional files (Provider, Managed Care Plans, and Third Party Liability).

The latest form for Transformed - Medicaid Statistical Information System (T-MSIS) (CMS-R-284) expires 2022-07-31 and can be found here.

Medicaid Statistical Information System (MSIS)

Federal Enterprise Architecture: Health - Health Care Services