Meet Pediatric Neurosurgeon Jeffrey Greenfield
Meet Pediatric Neurosurgeon Jeffrey Greenfield
Jeffrey P. Greenfield, MD, PhD
Pediatric Neurosurgeon
Titles
Associate Attending Neurosurgeon
Clinical Expertise
Pediatric Neurosurgery; Pediatric Brain Tumors; Neuroendoscopy; Minimally Invasive Neurosurgery; Spinal Cord Tumors
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New Patient Appointments
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Dr. Greenfield accepts the following list of insurance providers. Select your insurance provider to see more details.
Payor Type: Commercial
In Network Coverage Type(s): HMO, EPO PPO, POS, Transplant
Payor Type: Medicare/Medicare Advantage
In Network Coverage Type(s): PPO
Payor Type: Commercial
In Network Coverage Type(s): HMO, PPO
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, EPO, HMO
Payor Type: Commercial
In Network Coverage Type(s): HMO, EPO PPO, POS
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): HMO
Payor Type: Commercial
In Network Coverage Type(s): Supplemental
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, HMO
Payor Type: Commercial
In Network Coverage Type(s): POS, EPO, HMO
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, EPO, HMO
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): HMO
Payor Type: Medicare/Medicare Advantage
In Network Coverage Type(s): PPO, HMO
Payor Type: Medicare/Medicare Advantage
In Network Coverage Type(s): PPO, HMO, DSN
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): HMO
Payor Type: Commercial
In Network Coverage Type(s): PPO
Payor Type: Commercial
In Network Coverage Type(s): HMO, EPO
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): HMO
Payor Type: Medicare/Medicare Advantage
In Network Coverage Type(s): HMO
Payor Type: Medicare/Medicare Advantage
In Network Coverage Type(s): PPO
Payor Type: Commercial
In Network Coverage Type(s): EPO, HMO, PPO, POS
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): HMO
Payor Type: Medicare/Medicare Advantage
In Network Coverage Type(s): HMO, PPO
Payor Type: Commercial
In Network Coverage Type(s): PPO EPO
Payor Type: Commercial
In Network Coverage Type(s): HMO
Payor Type: Commercial
In Network Coverage Type(s): PPO
Payor Type: Commercial
In Network Coverage Type(s): EPO
Payor Type: Commercial
In Network Coverage Type(s): EPO
Payor Type: Medicare/Medicare Advantage
In Network Coverage Type(s): PPO, HMO
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): State Government
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, EPO
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): State Government
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): State Government
Payor Type: Medicare/Medicare Advantage
In Network Coverage Type(s): Federal Government
Payor Type: Commercial
In Network Coverage Type(s): Supplemental
Payor Type: Commercial
In Network Coverage Type(s): PPO/OAP
Payor Type: Other
In Network Coverage Type(s): PPO, POS, EPO, HMO
Payor Type: Medicare/Medicare Advantage
In Network Coverage Type(s): TBD
Payor Type: Commercial
In Network Coverage Type(s): HMO/EPO
Payor Type: Commercial
In Network Coverage Type(s): PPO, EPO
Payor Type: Commercial
In Network Coverage Type(s): State Government
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, HMO
Payor Type: Commercial
In Network Coverage Type(s): PPO, HMO
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, HMO
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Contact and Location
- 212-639-7056 Office Phone
- Speaks English

Memorial Sloan Kettering has locations throughout New York City, Long Island, New Jersey, and Westchester. These locations offer many services, including screening, chemotherapy, and medical testing.
See all locationsAbout Me
Education
MD, Weill Cornell Medical College; PhD, Weill Cornell Graduate School of Medical Sciences
Residencies
Neurosurgery - Memorial Sloan Kettering Cancer Center/NewYork-Presbyterian
Fellowships
Pediatric Neurosurgery - Children's Hospital of Philadelphia
Board Certifications
Neurological Surgery; Pediatric Neurological Surgery
I am pediatric neurosurgeon on the MSK Kids team who has advanced training in caring for patients with brain and spine tumors. My goal is the compassionate care of children paired with leading scientific advances in these tumors.
I have special expertise caring for children with astrocytomas. Some of these tumors, called low-grade gliomas, look very much like normal brain tissue to the naked eye. I use MRI during surgery to distinguish between normal tissue and tumor tissue, which enables me to remove the tumor tissue precisely and effectively. We also use advanced techniques to map the parts of the brain responsible for language and movement before and during surgery. We can avoid these areas during an operation and safely remove tumors without harming vital brain tissue.
Whenever possible, I try to use minimally invasive endoscopic approaches to operate on tumors at the base of the skull, such as those in or near the pituitary gland, like craniopharyngiomas and adenomas. Using this innovative technique, I can remove these tumors through the nose. This leaves no external scars, is less uncomfortable, and is easier for children to tolerate than conventional neurosurgery.
In addition to caring for young patients, I direct a research laboratory. I am seeking to understand several connected scientific questions. One major focus is exploring the events that turn noncancerous tumors, such as low-grade astrocytomas, into cancerous tumors. We have shown that certain cells from the bone marrow travel to the brain and promote the development of tumors. Treating these interactions is known as immunotherapy. The basic science underlying this idea forms the center of our research.
Another focus of the lab is to understand how tumor cells move through the brain. We study a rare tumor called gliomatosis cerebri to better understand this phenomenon and prevent tumor invasion. Finally, we are interested in what is known as precision medicine. This means developing tools and algorithms to better tailor therapy to target mutations we have discovered through biopsies.
I truly draw inspiration from my young patients every day. As we make treatment decisions with our patients and their families, we always keep in mind the goal of a happy, productive childhood and their continued physical, emotional, and intellectual development.
As we make treatment decisions with our patients and their families, we always keep in mind the goal of a happy, productive childhood and their continued physical, emotional, and intellectual development.
-Dr. Greenfield
Colleagues
Doctors at Memorial Sloan Kettering work as teams, with specialists from all different areas. This allows us to consider all your needs together, and to give you the best possible care.
Clinical Trials

Memorial Sloan Kettering's doctors and scientists are constantly developing new treatments for cancer. MSK is typically running hundreds of clinical trials at a given time.
You may be able to participate in a clinical trial even if you are new to MSK. Search our online directory to find trial information and see more about who can participate.
Search clinical trialsResearch and Publications
Visit PubMed for a full listing of Dr. Greenfield’s journal articles. Pubmed is an online index of research papers and other articles from the US National Library of Medicine and the National Institutes of Health.
See all on PubMedPatient Reviews
At MSK, we’re committed to delivering the best care to every patient. We use feedback from our patients to continue to improve our care. We also post patient reviews online to help you make healthcare choices. Learn more about our patient experience reviews.