Tri City Institute open their doors in 1993, providing medically assisted treatment on an outpatient basis For patients residing in Compton, Gardena, Los Angeles and Lynwood California We are Accredited by CARF holding a three Acceditation, Licensed with the State of Califronia, Los Angeles County, DEA and CSAT Medical Director, Addiction Counselors, Physician Assistants and LVN's available daily, for patient needs