- Assistant Professor of Neurosurgery and Oncology
Director of Endoscopic and Minimally Invasive Neurosurgery
- Assistant Director, The Johns Hopkins Sleep Disorders Center
- Associate Professor of Neurology, Neurosurgery, and Anesthesiology & Critical Care Medicine
Director, The Johns Hopkins Hospital Neurosciences Critical Care Unit
Director, Division of Neurosciences Critical Care, The Johns Hopkins Medical Insitutions - Professor of Neurosurgery, Orthopedic Surgery and Oncology
Donlin M. Long Professor of Neurosurgery
Director of the Spine Center - Professor of Neurology and Cognitive Science
Professor of Therapeutic Cognitive Neuroscience
- Assistant Professor of Neurology
- Professor of Neurology, Neuroscience, and Pathology




