Dr. James Greenblatt, MD, is a dual board-certified psychiatrist and internationally recognized pioneer in functional and integrative psychiatry. Widely regarded as the leading expert on the clinical application of low-dose lithium for mental health, Dr. Greenblatt has spent more than 30 years advancing precision-based approaches that move beyond symptom management to address the root causes of mental illness.
This commitment to education and transformation has guided his career and shaped his global influence.
After earning his medical degree at George Washington University, Dr. Greenblatt completed his psychiatry residency there and a fellowship in Child and Adolescent Psychiatry at Johns Hopkins Medical School. He currently serves as an Assistant Clinical Professor of Psychiatry at Tufts University School of Medicine and Dartmouth College’s Geisel School of Medicine.
A prolific author, Dr. Greenblatt has written nine books, including his newest book, Finally Hopeful (available January 2026), and the bestsellers Finally Focused: The Breakthrough Natural Treatment Plan for ADHD, Answers to Anorexia (updated edition, 2021), Functional & Integrative Medicine for Antidepressant Withdrawal, and Nutritional Lithium: The Untold Tale of a Mineral That Transforms Lives and Heals the Brain—the definitive guide to lithium’s role in psychiatry.
In 2019, he founded Psychiatry Redefined, a leading educational platform training clinicians worldwide in functional and integrative psychiatry. A sought-after international speaker, Dr. Greenblatt regularly lectures on nutritional psychiatry and the transformative role of functional medicine in mental health—and is available for expert commentary, speaking engagements, and media interviews.
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