Dan Iosifescu, M.D., M.Sc.

Dr. Dan V. Iosifescu is Deputy Director of the Nathan Kline Institute and Professor of Psychiatry at the New York University Grossman School of Medicine. He joined NKI in 2017, and he served as Director of the NKI Clinical Research Division until 2026.

After completing medical studies at the “Carol Davila” University in Bucharest, Romania, Dr. Iosifescu completed his medical internship and psychiatry residency at Massachusetts General Hospital (MGH) and McLean Hospital. His research training included a neuroimaging fellowship in the Neuroscience Laboratory at Harvard Medical School, a psychopharmacology fellowship in the MGH Mood and Anxiety Disorders Institute, and a fellowship in the Clinical Investigator Training Program at Harvard University and Massachusetts Institute of Technology. In parallel, Dr. Iosifescu received a Master of Medical Science degree from Harvard University. Dr. Iosifescu was Associate Professor of Psychiatry at Harvard Medical School and a researcher at MGH until 2010; he then was Director of the Mood and Anxiety Disorders Program and Associate Professor of Psychiatry and Neuroscience at the Icahn School of Medicine at Mount Sinai.

The research teams led by Dr. Iosifescu have developed novel pharmacological treatments (such as ketamine, bupropion-dextromethorphan, and ketogenesis-enhancing drugs), devices (such as neurostimulation with near infrared laser), and digital therapeutics for patients with mood disorders (major depression and bipolar disorder) and Alzheimer’s disease.

Dr. Iosifescu has authored more than 250 papers in peer-reviewed medical journals, 21 book chapters and more than 200 abstracts. He has received a series of prestigious prizes: the NARSAD Young Investigator Award (which he received twice), the Kaplen Award and the Livingston Award from Harvard Medical School, the American Psychiatric Association Young Investigator Award, the NCDEU New Investigator Award, and a National Institute for Mental Health K23 Career Development Award. In 2024 Dr. Iosifescu was recognized by Clarivate as a Highly Cited Researcher (top .1%) in his field.  For his clinical work, Dr. Iosifescu was designated among the “Best Doctors in America” in all editions of “Best Doctors” since 2005, and among Top Doctors in Castle Connolly’s psychiatry section (all editions since 2015).