Laurence M. Westreich, M.D., is a board-certified psychiatrist who specializes in the treatment of patients dually diagnosed with addiction and mental disorders. He is board certified by the American Board of Psychiatry and Neurology in general psychiatry, holds a certificate of added qualifications on addiction psychiatry, and is certified as an addiction specialist by the American Society of Addiction Medicine. Dr. Westreich is associate professor of clinical psychiatry in the Division of Alcoholism and Drug Abuse, Department of Psychiatry, New York University School of Medicine, and serves as the consultant on drugs of abuse to Major League Baseball. He formerly worked as the director of Bellevue Hospital's Detoxification Unit and Dual Diagnosis Unit. He lives in Upper Montclair, New Jersey, with his wife and three children.