John Peter Gruen

Dr. John Peter Gruen is a Clinical Associate Professor (Part-Time) of Neurological Surgery at the Keck School of Medicine, University of Southern California, with additional roles including Associate Medical Director of Critical Care at Los Angeles General Medical Center. His academic background includes a BA in History from Yale College and an MD from Columbia University, supplemented by fellowships in neuroscience and nerve surgery.

Research interests focus on neurotrauma management, traumatic brain injury outcomes, critical care protocols, and innovative interventions for long-term sequelae of TBI and COVID-19 long-haul symptoms. He established the LAC+USC Brain Injury Clinic to address complex post-traumatic conditions.

Publications demonstrate sustained contributions to improving trauma systems, critical care efficiency, and healthcare equity, with recent work emphasizing protocol optimization in resource-limited settings.