The primary goal of the project will be to improve the coordination of medical, substance abuse and mental health services for a group of Medicaid beneficiaries with chronic medical conditions. We hypothesize that the recipients of integrated care management (on the Eastern Shore) will have lower total medical costs (pharmacy, inpatient and outpatient), higher utilization of mental health and substance abuse services and lower use of emergency department services than those who received customary care (in western Maryland).