Nitin Tandon , MD

P. Roc Chen, MD, is a board-certified and fellowship-trained neurosurgeon specializing in open cerebrovascular, endovascular, and skull base neurosurgery, with expertise in brain aneurysms, arteriovenous malformations, carotid disease, acoustic neuroma, and skull base tumors. A professor in the Vivian L. Smith Department of Neurosurgery at McGovern Medical School at UTHealth Houston, Chen received his medical degree from Sun Yat-Sen University of Medical Sciences in Guangzhou, China, followed by residencies at Brigham and Women’s Hospital of Harvard Medical School. He completed fellowship training in neurointerventional radiology at Brigham and Women’s Hospital, in cerebrovascular and skull base surgery at Barrow Neurological Institute, and in neuroendovascular surgery and cerebrovascular neurosurgery at Thomas Jefferson University Hospital. Chen has authored and co-authored many peer-reviewed publications in cerebrovascular disease and other subjects in neurosurgery, particularly flow shearing-related brain aneurysm formation, subarachnoid hemorrhage management, and surgical and endovascular techniques in treating brain aneurysms. He is the principal investigator for a multicenter, randomized clinical trial in the treatment of cerebral vasospasm following subarachnoid hemorrhage due to brain aneurysm rupture. He’s also involved in multiple clinical trials using the latest endovascular technology in treating brain aneurysms, carotid disease, and brain AVMs (One of Chen’s specialties includes the treatment of brain occlusive disease (for example, moyamoya disease, which causes stroke), by performing extracranial to intracranial bypass anastomosis surgery. His expertise includes treating complex acoustic neuromas and other skull base meningiomas.

Ryan S. Kitagawa, MD, is a board-certified and fellowship-trained neurosurgeon caring for adult patients with traumatic brain injury (TBI). He strives to provide top-quality care to all TBI patients and their families during this difficult time. Kitagawa is also an associate professor of neurosurgery at McGovern Medical School at UTHealth Houston. His primary research focuses on traumatic brain injury. He frequently lectures at national and international meetings. Kitagawa completed medical school in 2006 and his neurosurgery residency in 2012 at Baylor College of Medicine. He completed fellowship training in neurotrauma and critical care at the University of Miami School of Medicine in 2013.

Dr. John Quinn is fellowship trained in spine surgery and sees patients at the Spine Center at UT Physicians Neurosciences at the Texas Medical Center. After graduating magna cum laude from Rutgers University in New Brunswick, New Jersey, Dr. Quinn earned his medical degree at the University of Medicine and Dentistry of New Jersey in Newark, where he was inducted into Alpha Omega Alpha Honor Medical Society. He completed his neurosurgery residency in the department of Neurological Surgery at Rutgers University Hospital and Robert Wood Johnson Medical Center in Newark, where he was chief resident. During his residency training he completed an enfolded fellowship in spine and scoliosis surgery at the Hospital for Special Surgery and Weill Cornell Department of Orthopedic Surgery in New York City. Following his residency training, he completed an additional fellowship in spine deformity surgery in the department of Neurological Surgery at the University of Virginia Medical School in Charlottesville. Dr. Quinn has been recognized with many academic honors and awards, and has co-authored numerous peer-reviewed publications and more than 10 book chapters. He has presented research nationally and internationally.