Dr. Christopher Duma, MD, FACS, is a leading neurosurgeon based in Newport Beach, California, serving as the Medical Director of the Brain Tumor Program at Hoag Memorial Hospital Presbyterian and co-founder of the private “Brain and Spine Surgeons of Orange County.” He earned his medical degree from Stony Brook University, completed his neurological surgery residency at Georgetown University, and pursued advanced fellowship training in Gamma Knife radiosurgery and stereotactic neurosurgery at the University of Pittsburgh. Dr. Duma is a diplomate of the American Board of Neurological Surgery and a Fellow of the American College of Surgeons. With decades of experience, he has performed more open craniotomies and Gamma Knife/CyberKnife radiosurgeries annually than almost any other neurosurgeon in Orange County, treating brain tumors, movement disorders, and applying regenerative neurosurgical techniques like immunotherapy and stem cell research.