Charles R. Marmar, MD is Professor and Chair of the Department of Psychiatry at the NYU Langone Medical Center. Most recently, Dr. Marmar served as Professor and Vice Chair at the University of California, San Francisco (UCSF), and the Associate Chief of Staff for Mental Health and Director of the Post-traumatic Stress Disorder (PTSD) Research Program at the Veterans Affairs Medical Center.

Internationally-renowned for his expertise in PTSD, Dr. Marmar's focus has ranged from combat-related conditions in veterans, including those from Iraq and Afghanistan, to groups as disparate as refugees and earthquake victims. He has served on multiple committees and scientific advisory groups at the national level, for both the Veteran's Administration in Washington, D.C., and for the National Institute of Mental Health. His counsel is sought across the country by VA Medical Centers, as well as fire departments, disaster response teams and police departments, including the New York Police Department.

An award-winning teacher and researcher who chaired his department's Research and Education Track at UCSF and directed a VA Neuroscience Research Fellowship program, Dr. Marmar is currently the principal investigator of seven PTSD-related grants variously funded by the Department of Veterans Affairs, NIMH and the Department of Defense. He has also been published voluminously as a member of the editorial board for the Journal of Psychotherapy Research and Practice and the Journal of Traumatic Stress; a reviewer for the Journal of Clinical Psychiatry, Biological Psychiatry, American Journal of Psychiatry and the Journal of Psychiatric Research. Additionally, he served as the president of both the Society of Psychotherapy Research and the International Society for Traumatic Stress Studies.