Abstract
The Transformed Medicaid Statistical Information System (T-MSIS) provides statereported Medicaid claims data for the population of Medicaid beneficiaries across U.S. states. T-MSIS data is critical for developing evidence-based practices to improve Medicaid services, including Long-Term Services and Supports (LTSS). Researchers can use T-MSIS data to identifydisparitiesin access toand utilization of services across states and
demographic characteristics, including age, disability, rural/urban, sex, and race-ethnicity. This information can be used to improve access, quality, and outcomes of Medicaid services.