| CMS releases the 2021 Medicaid Managed Care Enrollment and Program Characteristics and Data Tables Today, the Centers for Medicare & Medicaid Services (CMS) released the 2021 Medicaid Managed Care Enrollment and Program Characteristics and Data Tables. This national data is broken down by program and population, as well as by individual state. The enrollment data provides an accurate snapshot of Medicaid managed care enrollment for a particular year as of July 1st of each year. Medicaid Managed Care National Program Data by Program and Population Medicaid Managed Care State Data | 