David L. Nathan, MD, DFAPA is a Princeton, New Jersey based psychiatrist, educator and consultant. He is also a professional speaker and published author on diverse topics in medicine, academia and social justice.

Originally from the Philadelphia area, Dr. Nathan graduated magna cum laude from Princeton University. He received his M.D. from the University of Pennsylvania School of Medicine, where he distinguished himself in the development of medical education software. He subsequently entered the McLean Hospital Residency Training Program of Harvard Medical School. In his final year at McLean, Dr. Nathan served as Chief Resident of the Bipolar and Psychotic Disorders Program. In this capacity, he supervised residents on the inpatient service and founded an outpatient clinic with senior clinicians and residents.

Dr. Nathan is the Director of Continuing Medical Education for the Princeton HealthCare System (PHCS) and the Director of Professional Education for Princeton House Behavioral Health. He is board certified in psychiatry by the American Board of Psychiatry and Neurology, and he remains involved in teaching as a Clinical Associate Professor at the Robert Wood Johnson Medical School of the University of Medicine and Dentistry of New Jersey. Dr. Nathan serves as the Physician Advisor for the New Jersey State Chapter of the Depression and Bipolar Support Alliance.  He is a Distinguished Fellow of the American Psychiatric Association, the highest membership honor bestowed by the APA.

Dr. Nathan is a leading advocate for evidence-based changes in drug policy, focusing on principles of public health and social justice. He has published numerous articles on the subject for local, national and international news outlets. In 2014 he was appointed to the steering committee of New Jersey United for Marijuana Reform (NJUMR), which is a coalition of the New Jersey chapters of the ACLUNAACP and other organizations. He is the founder and Board President of Doctors for Cannabis Regulation (DFCR), the first and only national and international physicians’ organization dedicated to the legalization, regulation and taxation of marijuana. He was the main author of DFCR’s founding document, “A Declaration of Principles,” which was published when the organization launched in April 2016.