David O. Okonkwo, MD, PhD, is professor of neurosurgery at the University of Pittsburgh and executive vice chair of neurosurgery at the University of Pittsburgh Medical Center. Dr. Okonkwo leads one of the premier clinical and research programs for traumatic brain injury in the United States and is the principal investigator of a nationally funded clinical core to study the pathophysiology of traumatic brain injury. Okonkwo completed his undergraduate work at the University of Virginia, where he received the University Academic Achievement Award and was named a Howard Hughes Undergraduate Biomedical Research Scholar. He completed the MD/PhD program at Virginia Commonwealth University in 2000. He joined the University of Pittsburgh in 2006 following completion of neurosurgical residency at the University of Virginia and a fellowship at Auckland Public Hospital, Auckland, New Zealand. He has published more than 130 papers and gives lectures around the world to advance neurosurgery with emerging innovations in traumatic brain injury.