A national review identified 10 Medicaid alternative payment models (APMs) for people with intellectual/developmental disability (I/DD) operating in eight states: Arizona, Arkansas, Kansas, Michigan, New York (operating three models), Pennsylvania, Tennessee, and Wisconsin. The 10 APMs evaluated used different forms of risk-based payments, ranging from shared savings payments to provider organizations to full-risk capitation through Medicaid managed care organizations (MCOs). The models generally involved integration of an array of Medicaid services. A few models facilitated investments in technology or flexibility in service provision. Most of the models are relatively new and have not been extensively evaluated . . .