Carla Marienfeld, MD, DFAPA, DFASAM is board-certified in psychiatry, addiction psychiatry, and addiction medicine. She is a Clinical Professor at the University of California San Diego where she is the Co-Director of the Pacific Treatment And Research Center (PacTARC), Clinical Lead for the Substance Treatment and Recovery (STAR) Program, and the Program Director for the UCSD Addiction Psychiatry Fellowship. She has authored or co-authored over five dozen peer reviewed articles, book chapters, practice guidelines, and invited commentaries, and she edited three books: Motivational Interviewing for Clinical Practice, Absolute Addiction Psychiatry Review: An essential board exam study guide, and Addiction Psychopharmacology, 3rd Ed. Dr. Marienfeld completed a fellowship in addiction psychiatry and residency training in psychiatry at Yale. She earned a medical degree with honors from Baylor College of Medicine.Maryam Soltani, MD, PhD is triple board-certified in psychiatry, addiction medicine, and family medicine and is an Assistant Clinical Professor of Psychiatry at the University of California, San Diego. She serves as Medical Director of the Substance Abuse Residential Rehabilitation Treatment Program (SARRTP) at the VA San Diego Healthcare System. She was named a San Diego Top Doctor in 2023 and received the Department of Psychiatry Clinician of the Year Award at University of California, San Diego in 2025. Dr. Soltani’s work bridges neuroscience and clinical medicine, focusing on the neurobiology and treatment of substance use disorders and their associated medical and psychiatric conditions. She has authored dozens of peer-reviewed publications in neuroscience, addiction medicine, and psychiatry. She earned her PhD in psychology with an emphasis in biological psychology and neuroscience from the University of California, Berkeley and her medical degree from University of California, San Diego, where she completed a dual residency in family medicine and psychiatry and served as chief resident during her final year of training.