Trilogy Behavioral Healthcare has more than 250 employees and is a community-based mental health organization with 44 years of experience serving more than 1900 people with mental illness and mental illness with co-occurring substance use disorders in the City of Chicago and its surrounding communities. Trilogyâs mission is to assist people in their recovery from serious mental illness by helping them discover and reclaim their own capabilities and life direction. We are nationally recognized for providing innovative mental health services as well as primary care services through our partnerships with Heartland Health Centers and Rush University College of Nursing. Central to the philosophy of all Trilogy services is a belief in the possibility of long-term recovery from mental illness and mental illness with co-occurring substance use disorders. We offer a wide-array of mental health services including: Integrative Healthcare, Intensive Crisis Services, Group Services, Occupational Therapy, Supported Housing, Supported Employment, and Psychiatric Services.