Petros Levounis, MD, MA, is a Phi Beta Kappa graduate of Stanford University where he studied chemistry and biophysics before receiving his medical education at Stanford University School of Medicine and the Medical College of Pennsylvania. During medical school, he researched the effects of social class on patient-physician relationships in Oxford, England, and received an MA degree in sociology from Stanford. In 1994, he moved to New York City to train in psychiatry at the New York State Psychiatric Institute of Columbia University. He graduated from Columbia earning the National Institute of Mental Health Outstanding Resident Award and went on to complete his fellowship in addiction psychiatry at New York University. From 2002 to 2013, he was on the faculty of Columbia University where he served as director of the Addiction Institute of New York. In 2017, Dr. Levounis was elected as an honorary member of the World Psychiatric Association, and in 2022, he was elected to the Presidency of American Psychiatric Association. Dr. Levounis has published thirteen books including the self-help paperback "Sober Siblings: How to Help Your Alcoholic Brother or Sister--and Not Lose Yourself", the textbook of "Substance Dependence and Co-Occurring Psychiatric Disorders", "Motivational Interviewing for Clinical Practice", "The Behavioral Addictions", "Becoming Mindful", and the "Office-Based Buprenorphine Treatment of Opioid Use Disorder", now in its second edition. Dr. Levounis is currently working on a Pocket Guide to LGBTQ Mental Health and the first textbook of Technological Addictions. His books have been translated into French, German, Hungarian, Japanese, Portuguese, and Spanish. Dr. Levounis is married to actor Lukas Hassel and lives in New York City.