The Chestnut Health Systems-Bloomington Adolescent Outpatient (OP) and Intensive Outpatient (IOP) Treatment Model is designed for youth between the ages of 12 and 18 who meet the American Society of Addiction Medicine’s criteria for Level I or Level II treatment placement. The Bloomington model incorporates outpatient and intensive outpatient programs and is based on a blended therapeutic approach, drawing on four theoretical frameworks (Rogerian, behavioral, cognitive, and reality) for behavioral and emotional change. The program emphasizes an individualized treatment plan that includes the family unit as well as the adolescent.