Addiction Treatment Services International is a drug treatment service provider in Galloway, New Jersey. ATSI currently performs outpatient type treatment. Offering a highly clinical approach to addiction treatment separates ATSI from the crowd of mostly social or 12-step based programs available today. ATSI is innovative in their ability to provide long-term treatment to addicts and alcoholics. Research shows that longer treatment stays equate to better outcomes for the client. ATSI optimizes their clinical program to offer the best chances for recovery.