Nelson M. Oyesiku MD, PhD, FACS


Dr. Oyesiku is Co-Director of the Emory Pituitary and Neuroendocrine Center, which provides patients with comprehensive and personalized management of pituitary disorders.

Titles and Roles

Professor and Vice-Chairman, Neurological Surgery and Professor, Medicine (Endocrinology)
Emory University School of Medicine
Director, Neurosurgical Residency Program and Al Lerner Chair, Neurosurgery
Emory University School of Medicine
Director, Laboratory of Molecular Neurosurgery and Biotechnology
Emory University School of Medicine
Brain and Spine Tumors
Research Program
Discovery and Developmental Therapeutics


A board certified neurosurgeon, Nelson M. Oyesiku MD, PhD, FACS, has performed over 1,700 pituitary tumor surgeries and is an international leader among neurosurgeons. He is a pioneer in the use of 3D endoscopy in pituitary surgery. His clinical focus is the surgical treatment and molecular biology of pituitary tumors, and he is Principal Investigator of the R25 National Institutes of Health (NIH) training grant for neurosurgery.

Dr. Oyesiku has served on the Board of Directors of the American Board of Neurological Surgery, as Chairman of the Maintenance of Certification Committee, as Chairman of the American Board of Neurological Surgery, on the Board of Governors of the American College of Surgeons, and on the Advisory Council for Neurosurgery of the American College of Surgeons. He also serves as a member of the Residency Review Committee of Neurosurgery of the ACGME and is a fellow of the American College of Surgeons. Additionally, he is President of the International Society of Pituitary Surgeons and he has held leadership positions in the following professional organizations: the Congress of Neurological Surgeons, the Federation for International Education in Neurosurgery, the Georgia Neurosurgical Society, the Society of Neurological Surgeons, and the World Federation of Neurosurgical Societies.


Dr. Oyesiku attended medical school at the University of Ibadan in Nigeria and earned his Master of Science from the University of London as a Commonwealth Scholar. He completed his surgery internship at the University of Connecticut Hartford Hospital and obtained his neurosurgical training at Emory University School of Medicine. During his residency he also completed a doctorate in neuroscience at Emory University.


Dr. Oyesiku and his team of researchers performed the first studies on high-throughput gene expression studies that identified unique aspects of pituitary adenoma gene expression and led to a new imaging modality and potential targeted therapy of pituitary tumors. This molecular imaging diagnostic tool was pioneered and first utilized at Emory for patients with pituitary tumors. The molecular imaging allows doctors to identify a key tumor marker in patients with clinically nonfunctional pituitary tumors, thereby identifying potential patients for a new, targeted chemotherapy and could lead to the first drug therapy for clinically nonfunctional pituitary tumors. Dr. Oyesiku is currently investigating the pathogenesis of pituitary adenomas using genome-wide association studies and whole genome sequencing methods. His laboratory has one on the largest pituitary tumor banks linked to a clinical database to study natural history, treatment outcomes, and molecular correlations.


Dr. Oyesiku has authored manuscripts, book chapters, and a book in the field of neurosurgery. He has over 150 publications in various academic journals, is an ad hoc reviewer for several, and was named Editor-in-Chief of Neurosurgery, the official journal of the Congress of Neurological Surgeons, in 2009.


Dr. Oyesiku has received numerous awards including the Resident Award from the American Academy of Neurological Surgery, the Young Investigator Award, Brain Trauma Award, the Medical Faculty Development Award from the Robert Wood Johnson Foundation, and the Augustus McCravey Resident Award from the Southern Neurosurgical Society. Additionally, Dr. Oyesiku has been selected by his peers as one of The Best Doctors in America and selected by the Consumer Research Council of America as one of America's Top Surgeons. He is named in Marquis Who's Who in America and is an alumni member of the Alpha Omega Alpha Honor Medical Society. Dr. Oyesiku has been a visiting professor at several departments of neurosurgery across the U.S. and abroad and was recently awarded the "Gentle Giant Award" by the Pituitary Network Association for his services to pituitary surgery and medicine. For research, Dr. Oyesiku received an NIH CIDA Award and an NIH RO1 Award for the molecular imaging and targeting of pituitary tumors.

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