Nathan Zasler MD is CEO & Medical Director for Concussion Care Centre of Virginia, Ltd., as well as CEO & Medical Director for Tree of Life Services, Inc. and Vice-Chairperson of the International Brain Injury Association (IBIA). Dr. Zasler is board certified in PM&R, fellowship trained in brain injury and subspecialty certified in Brain Injury Medicine. He is an affiliate professor in the VCU Department of Physical Medicine and Rehabilitation, Richmond, VA, and an adjunct associate professor in the Department of Physical Medicine and Rehabilitation at the University of Virginia, Charlottesville. He is Chairperson Emeritus of IBIA and currently serves as Vice-Chairperson. Dr. Zasler has published and lectured extensively on TBI related neuromedical issues and edited 7 textbooks including “Brain Injury Medicine: Principals and Practice”. He is co-chief editor of “Brain Injury”, “NeuroRehabilitation” and “Brain Injury Professional”. Dr. Zasler serves on over 10 international journal editorial boards. He is active in local, national and international organizations dealing with acquired brain injury and neurodisability, serving or having served in numerous consultant and board member roles. Dr. Zasler is an advocate, educator, clinical researcher, inventor, entrepreneur and busy practicing clinician who is involved with community based neurorehabilitation, chronic pain management, and health care consultation, both clinical and medicolegal.