Jeffrey P. Greenfield, MD, PhD

Dr. Greenfield, co-director of the Weill Cornell Medicine (WCM) Children’s Brain Tumor Project, is a board-certified neurosurgeon who specializes in pediatric neurosurgery at Weill Cornell Medicine, Memorial-Sloan Kettering Cancer Center, and Columbia University Medical Center. Compassionate clinical care, research, and education are all central to his philosophy as a neurosurgeon and physician, and he is a strong proponent of transitional neurosurgery –caring for patients with specific conditions from childhood through adulthood.

He is also the named Vice Chairman of Academic Affairs and Associate Professor of Pediatric Neurosurgery at WCM. Dr. Greenfield also directs the pediatric skull base surgery program at WCM, evaluating and removing tumors of the pituitary gland region and skull base, such as craniopharyngiomas, with minimally invasive endoscopic tools. Dr. Greenfield is also expert in utilizing minimally invasive ventricular endoscopy of the brain to treat tumors, hydrocephalus, and cysts within the ventricles, and intraoperative brain and spine mapping and imaging to care for children with benign and malignant tumors of the brain and spine.In the CBTP laboratory, Dr. Greenfield directs multiple research projects pertaining to pediatric brain tumors, in particular, basic research examining the brain tumor microenvironment, tumor immunology, and precision medicine. This research has been widely published and he has received national awards from neurosurgical societies. Together with Dr. Mark Souweidane, Dr. Greenfield’s work at the Children’s Brain Tumor Project focuses on novel approaches and innovative care for children with rare and inoperable brain tumors.

Dr. Greenfield graduated from Amherst College magna cum laude in Neuroscience before receiving his M.D. and Ph.D. degrees from the Weill Medical College of Cornell University. Following completion of his neurosurgical residency and chief residency at New York-Presbyterian Hospital/Weill Cornell Medical Center, Dr. Greenfield received further training in surgical treatment of brain and spinal cord tumors at The Children’s Hospital of Philadelphia.

​