While Medicaid can not provide the full range of services and supports needed by working-age adults with serious mental illnesses, it can be used to cover the costs of critical services. Sometimes Medicaid funding of mental health services is presumed to be exclusively reserved for professional treatment of the mental illness. However, as illustrated in this chapter, Medicaid funding can also be employed for rehabilitative services to support individuals in recovery. Medicaid services such as ACT and crisis intervention can improve the community tenure of individuals who might otherwise require costly hospitalization or institutionalization. People with serious mental illnesses can be supported to live successfully in the community through the provision of a variety of rehabilitative services and supports.