Seth Mandel, M.D.

Psychiatrist, Medical Director

Dr. Seth Mandel is a psychiatrist specializing in integrative psychiatry and the treatment of mood, anxiety, and personality disorders, and he has expertise working with clients diagnosed with borderline personality disorder (BPD). He also serves as Lukin Center’s Medical Director.

Dr. Mandel has more than 20 years of clinical experience working with clients spanning the broad spectrum of mental illness and substance use. He has collaborated extensively with and provided direct supervision to social workers, psychologists, physician assistants, and nurse practitioners, as well as resident and attending physicians. He enjoys working closely with medical providers, psychotherapists, and practitioners of other healing modalities such as nutrition, yoga, and acupuncture. Through this eclectic approach, Dr. Mandel can achieve the best possible outcome for all whom he is privileged to serve.

In his quest to streamline complex pharmaceutical regimens, Dr. Mandel recently completed a fellowship in integrative and functional psychiatry. This discipline uses laboratory analysis to evaluate and treat underlying contributing issues which may include nutritional deficiencies, food allergies, infections, toxicities, and genetic disorders. 

The recipient of the Borderline Personality Disorder Research Foundation Young Investigator Award, Dr. Mandel has lectured on the pharmacologic management of BPD, including a presentation at the NIMH International Think Tank for the More Effective Treatment of Borderline Personality Disorder. He holds numerous clinical and academic appointments, most recently serving as Chairperson of Psychiatry at Huntington Hospital in Huntington, New York, and Assistant Professor of Psychiatry at Hofstra North Shore-LIJ School of Medicine.

Dr. Mandel received his BA and Doctor of Medicine degrees from the University of Pennsylvania, and he completed his residency in psychiatry at Mount Sinai Medical Center in Manhattan. He has been board certified in psychiatry since 2001 and is a fellow of the American Psychiatric Association.