Associate Psychologist, Massachusetts General Hospital
Program Director, The Bulfinch Program
Clinical Psychologist, Home Base Program
Assistant Professor of Psychiatry, Harvard Medical School

Dr. Timothy Petersen spearheads development and implementation of continuing medical education programs delivered by MGH faculty to worldwide providers. Dr. Petersen is the author or co-author of over 60 scholarly articles published in peer-reviewed scientific journals, numerous book chapters, and books. He has been invited to present his research findings at numerous national and international professional meetings and has served as a reviewer for several scientific journals.

Dr. Petersen served as a cognitive therapist and project coordinator for the seminal NIH Sequential Treatment Alternatives to Relieve Depression (STAR*D) investigation and was the principal investigator for an investigation sponsored by a Young Investigator Grant received from the National Alliance for Research on Schizophrenia and Depression (NARSAD). In 2002, he was awarded the New Investigator Award by the NIH New Clinical Drug Evaluation Unit.

Dr. Petersen's clinical specialty is cognitive behaviorally based interventions for difficult to treat mood disorders. He is sought after to provide consultation for complex clinical cases. As part of his research work, he has been involved in developing various evidence-based psychotherapy treatment manuals. Dr. Petersen is active in providing clinical and research supervision to MGH psychology interns and psychiatry residents, and has mentored several undergraduate and graduate students during clinical and research practical placements.