Nicholas Nissen, MD, is a Harvard-trained, board-certified psychiatrist specializing in young adult mental health, ADHD, and anxiety disorders. He served as Chief Resident of Student Mental Health at Harvard Medical School, where he worked with college and graduate students. At the Boston University Center for Anxiety and Related Disorders, he predominantly worked with college students using cognitive behavioral therapy (CBT) and exposure and response prevention (ERP) for anxiety and OCD. He hosts the Brain Health with Dr. Nissen podcast and contributes to ABC News coverage of mental and brain health.
Dr. Nissen takes a comprehensive approach to helping young adults thrive academically, professionally, socially, and independently. In addition to medication and psychotherapy, his work may incorporate executive functioning strategies, sleep, nutrition, exercise, and other lifestyle interventions. He also works closely with families, drawing from SPACE parent coaching and SPACE-Failure to Launch approaches to help parents support young adults struggling with anxiety, avoidance, and independence.
Education & Training
- Psychiatry Residency, Harvard Medical School / Cambridge Health Alliance
- Chief Resident, Student Mental Health, Harvard Medical School / Cambridge Health Alliance
- Boston University Center for Anxiety and Related Disorders, CBT and exposure-based therapies
- Brown University Alpert Medical School, Doctor of Medicine (M.D.)
- Diplomate, American Board of Psychiatry and Neurology
Board Certification
- Diplomate, American Board of Psychiatry and Neurology






























