Dr. Gillian Harrison is a fellowship-trained neurosurgeon and joined Inova Health System in 2023. She specializes in the management of skull base lesions, pituitary tumors, benign and malignant brain tumors, and trigeminal neuralgia. She has experience in endoscopic endonasal and minimally invasive cranial surgery, as well as stereotactic radiosurgery.

Prior to joining Inova, Dr. Harrison completed residency training in neurological surgery at New York University. She then completed a fellowship in skull base and cerebrovascular neurosurgery at Goodman Campbell Brain & Spine in Indianapolis, IN, followed by a fellowship focusing on skull base and endoscopic, endonasal pituitary surgery at the Medical College of Wisconsin.

Dr. Harrison serves as Assistant Professor at the University of Virginia School of Medicine, Inova Medical Campus.

Dr. Harrison utilizes a multi-disciplinary approach to provide the most comprehensive, safe, and evidence-based care possible. She is committed to helping patients and their families understand their diagnoses and treatment options, both operative and nonoperative. Her mission is to empower them to make well-informed decisions in line with their preferences and lifestyle to achieve the best possible outcomes.  

A Maryland native, Dr. Harrison currently resides in Alexandria, VA. Outside of work she enjoys spending time with family, friends, and her dog. She also loves travel, sailing, cycling, and live music.