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Our Team

Our Team

Nathan D. Zasler, MD

Mark Bender, PhD

Carrie Hartwell, PhD, LCSW



Tree of Life Staff
Nathan D. Zasler, MD

Nathan D. Zasler, MD, FAAPM&R, FACRM, FAADEP, FAAPM, CBIST

CEO and Medical Director/Founder

Nathan D. Zasler, MD, is an internationally respected specialist in brain injury care and rehabilitation. Dr. Zasler is the CEO and medical director of Tree of Life, a living assistance and transitional rehabilitation program for persons with acquired brain injury. He is also CEO and Medical Director of the Concussion Care Centre of Virginia an outpatient evaluation and treatment center for persons with acquired brain injury. He is board certified in Physical Medicine and Rehabilitation and fellowship trained in brain injury. He is also a fellow of the American Academy of Disability Evaluating Physicians, and a diplomate of the American Academy of Pain Management. He is a Clinical Professor in the Department of Physical Medicine and Rehabilitation at Virginia Commonwealth University in Richmond, Virginia, as well as, a Clinical Associate Professor in the Department of Physical Medicine and Rehabilitation at University of Virginia in Charlottesville, Virginia.

Dr. Zasler has lectured and written extensively on neurorehabilitation issues. Dr. Zasler is active in numerous national and international organizations dealing with acquired brain injury and neurodisability, serving in consultant or board member roles. He has co-edited four textbooks, Rehabilitation of Post-Concussive Disorders, Medical Rehabilitation of Traumatic Brain Injury, Rehabilitation of Functional Disorders and Brain Injury Medicine: Principles and Practice. He is on the editorial boards of numerous medical journals and is editor-in-chief of the international scientific publications NeuroRehabilitation: An Interdisciplinary Journal, The International Neurotrauma Letter and Brain Injury. His main areas of clinical and research interest include neuromedical issues in acquired brain injury, particularly mild TBI and DOC (disorders of consciousness), as well as, post-traumatic pain disorders (e.g. headache and spinal pain syndromes).