Dr. Gastfriend is an addiction psychiatrist. At Harvard Medical School, he directed addiction research at Massachusetts General Hospital and was an investigator in the NIDA Cocaine Collaborative Study, NIAAA’s COMBINE Study and NIDA’s Clinical Trials Network. As Vice President at Alkermes, Inc., he directed scientific publications on Vivitrol in clinical, criminal justice and health economics research.

His research led most states to endorse the American Society of Addiction Medicine (ASAM) Criteria. His 150 scientific publications include the books The ASAM Criteria and Addiction Treatment Matching. His ASAM CONTINUUM – The ASAM Criteria Decision Engine® and ASAM’s CO-Triage® tools are being adopted nationwide.

In 2016, he co-founded DynamiCare Health, a nationally-scalable technology for Contingency Management and predictive analytics, winning awards from Harvard Business School, the Commonwealth of Massachusetts, the Governor of Ohio, and the New York Times. He has consulted to governments in Belgium, China, Iceland, Israel, Norway, Russia and the U.S.