After the Illinois Medicaid program transitioned people with intellectual/developmental disabilities (I/DD) in community-based settings from fee-for-service (FFS) to the mandatory Medicaid managed care (MMC) Integrated Care Program (ICP) in May 2011, state spending on this population's acute health services remained at about the same level through January 2013. This is in contrast to the state's projected savings of about $40 million per year over five years. The ICP was a pilot program that started on May 1, 2011; it enrolled about 36,000 seniors and people with disabilities age 19 and older who . . .