Dr. Cohen is the director of the Johns Hopkins Division of Pediatric Neurosurgery and the Carson-Spiro Professor of Pediatric Neurosurgery. He treats all pediatric patients, with a focus on brain tumors. Dr. Cohen sees patients at the Johns Hopkins Outpatient Center’s Neurosciences Clinic.

Dr. Cohen is a leader in developing minimally invasive techniques to enhance the safety and efficacy of selected pediatric neurosurgical procedures. He serves as Director of the Minimally Invasive Neurosurgery Laboratory at Johns Hopkins and directs the Minimally Invasive Neurosurgery Fellowship.  His lab focuses on developing novel instruments and surgical approaches. He has authored 190 peer-reviewed journal articles and book chapters, and published two textbooks.  He has given approximately 330 national and international presentations and has been an invited visiting professor at 50 medical centers.

He is past president of the Society of Neurological Surgeons, the American Society of Pediatric Neurosurgeons and the AANS/CNS Section on Pediatric Neurological Surgery.  He is past vice president of the American Academy of Neurological Surgery and a past director of the American Board of Neurological Surgery and a current director of the American Board of Pediatric Neurological Surgery.

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