Mariann Kessimian, MD

Marianna Kessimian, MD

Assistant Professor, Brown University
Pediatric and Adult Psychiatrist


Dr. Kessimian is a Diplomat of the American Board of Psychiatry and Neurology; board certified in child, adolescent and adult psychiatry. She received her MD from Boston University and completed both her adult psychiatry training and child psychiatry fellowship at Brown University, where she served as chief resident. Previously, she was a staff psychiatrist at the Young Adult Behavioral Health clinic, and in this role was afforded the opportunity to work on campus at the Rhode Island School of Design providing psychiatric care to their students. Dr. Kessimian is a Clinical Assistant Professor at the Alpert Medical School of Brown University, where she teaches Advanced Psychopharmacology of Pediatric Psychiatric Disorders. She is a member of the admissions committee for both the Warren Alpert School of Medicine and the Psychiatry Residency Program at Brown University. Her awards include the Gold Humanism in Medicine Society as well as the Ruth J Hunter Johnson Prize for Excellence in Psychiatry.

Dr. Kessimian sees clients throughout the lifespan: children, adolescents, young adults, and adults. She has particular expertise in working with emerging adults, addressing the complex demands specific to this group with a comprehensive and developmental appropriate approach.  Dr. Kessimian is also an expert in all types of eating disorders, depression, ADHD, anxiety, panic, obsessive-compulsive disorders, personality disorders, and bipolar disorder and provides medication management as well as evidence based psychotherapy.