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Jeffrey Greenfield, MD, PhD is a board-certified neurosurgeon who specializes in pediatric neurosurgery. In addition he sees certain adult patients with congenital neurosurgical conditions. Compassionate clinical care, research, and education are all central to his philosophy as a neurosurgeon and physician.

His clinical expertise includes Chiari malformation, all forms of tethered spinal cord, pediatric brain tumors and congenital neurosugery into adulthood. 

As creator and director of the Chiari CARE program, Dr. Greenfield has developed an international reputation caring for children and adults with Chiari malformation, tethered cord, syringomyelia, and other associated conditions such as craniocervical instability, CSF leaks, and hydrocephalus as part of a large multidisciplinary team.

Dr. Greenfield is a strong proponent of the unique concept of transitional or congenital neurosurgery – caring for patients with specific conditions from childhood through adulthood.

 Dr. Greenfield writes about the importance of engaging and empowering even his youngest patients

Dr. Greenfield also directs the pediatric skull base surgery program, evaluating and removing tumors of the pituitary gland region and skull base such as craniopharyngiomas with minimally invasive endoscopic tools. Dr. Greenfield is also an 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.

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Looking for a second opinion? Dr. Greenfield can review your scans: . (If you do not have an account simply enter your email address and you will be prompted to create an account. .)

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Dr. Greenfield sees patients at:

1305 York Avenue (at 70th Street), 9th Floor New York, NY 10065

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For more information about Dr. Greenfield, visit

To make an appointment, please call 212-746-2363.  

Weill Cornell Pediatric Neurosurgery

Children's Brain Tumor Project