I’m a professor and chair of the Department of Neurological Surgery at The Ohio State University Wexner Medical Center. I hold the Dardinger Family Chair in Neurosurgical Oncology. Previously, I was chief of the Surgical Neurology Branch at the National Institutes of Health. I specialize in the resection of brain, spinal cord, pituitary and brainstem tumors.

My research includes nervous system drug delivery, gene therapy and tumor biology. I have authored more than 300 publications. I received the Tumor Young Investigator Award and the Mahaley Clinical Research Award from the American Association of Neurological Surgeons (AANS)/Congress of Neurological Surgeons (CNS) Tumor Section. I was the AANS/CNS Tumor Section Bittner Lecturer and the American Academy of Neurological Surgery Edward H. Oldfield Lecturer.

I have served as treasurer and president of the CNS. I’m a director on the American Board of Neurological Surgeons. I was the head of the research subcommittee in Head, Neck and Spine Injury Committee for the National Football League. I have mentored over 40 fellows. I have served on the editorial boards of NEUROSURGERY, World Neurosurgery, Journal of Neurosurgery, PLoS One and Science Reports. I’m consulting editor for Neurosurgery Clinics of North America. I have edited three neurosurgical textbooks.

  • Director, American Board of Neurological Surgeons
  • Past-president, Congress of Neurological Surgeons
  • Chair, American Academy of Neurological Surgeons Research Committee
  • Past-chair, Editorial Board, Journal of Neurosurgery
  • Named to the Castle Connolly list of “Regional Top Doctors,” 2018-2019