Provides a long-term comprehensive and structured day program to mentally ill persons age 18 and older, who have a primary psychiatric diagnosis, are functioning or developmentally disabled, and/or have a drug or alcohol problem in addition to their mental illness, mentally ill chemical abusers (MICA). Provides a separate senior day program for older persons who are displaying behavioral and psychiatric difficulties. An individualized, therapeutic treatment plan is designed for each patient by the treating Psychiatrist and Inter-disciplinary Team. Patients attend from two to five days per week for 5 hours per day based on individual need. Length of stay varies from 3 months to one year. Screening interview is required. Available treatment include: Symptom Management, Medication Therapy and Education, Group Therapy, Rehabilitation Readiness Development, Activities Therapies, Health Screening and Referral. Also includes Case Management, Transportation, Crisis Services, Family Support and Education, Discharge Planning and Follow-Up Care.