For COVID-19 vaccine updates, please review our information guide. For patient eligibility and scheduling availability, please visit

Pediatric Neurosurgery Fellowship

A one-year clinical fellowship in Pediatric Neurosurgery beginning July 1 of each year is available to qualified applicants. This fellowship is not accredited by the Accreditation Council for Pediatric Neurosurgical Fellowships and by the Committee on Subspecialty Training of the Society of Neurological Surgeons. Therefore, fellows are not selected through the regular process managed by the Fellowship Match for Neurological Surgery (San Francisco Matching Programs).

The fellowship is designed to provide a comprehensive exposure to clinical pediatric neurosurgery. The primary goal is to educate postgraduate neurosurgeons or neurosurgeons in training on the detailed diagnostic and therapeutic options available for children with neurosurgical conditions.

Weill Cornell Medicine Pediatric Neurosurgery Fellowship

The Pediatric Neurosurgery service at the NewYork-Presbyterian Hospital/Weill Cornell Medical Center ranks as one of the busiest providers for children in the metropolitan New York City area. NewYork-Presbyterian Hospital has been the highest ranking hospital in New York for 18 straight years in the U.S. News and World Report survey.

The program faculty includes Mark M. Souweidane, MDJeffrey P. Greenfield, MD, PhD; and Caitlin Hoffman, MD.

The clinical spectrum and operative experience is extensive. The program is notable for the emphasis on minimally invasive and endoscopic surgery. The experience in intraventricular endoscopic surgery and transnasal skull base approaches is amongst the busiest worldwide. Tumor surgery is emphasized through traditional approaches and the use of intra-operative MRI. Pediatric vascular disorders are commonly treated using state of the art adjuncts including intra-operative angiography and an innovative interventional neuroradiology program. Multidisciplinary programs include comprehensive epilepsy, craniofacial, neuromodulation (movement disorders and spasticity), neuro-oncology, perinatal neurosciences, myelodysplasia, traumatic brain injury and concussion, and skeletal dysplasia.

The fellowship is based at the NewYork-Presbyterian Komansky Children’s Hospital. Affiliated institutions include the Hospital for Special Surgery and Memorial Sloan Kettering Cancer Hospital. Upon approval the candidate will complete additional Graduate Medical Education e-courses.

Applicant Requirements:
The Pediatric Neurosurgery fellowship is open to U.S. and non-U.S. graduates of a neurosurgery training program or current residents who have completed at least three years of a neurosurgery residency program. Requirements include:

1. U.S. Medical Licensing Exam (USMLE) Step 1 and Step 2; parts 1 and 2
2. ECFMG certification (if MD completed overseas)
3. Appropriate visa (if applicable)
4. Social Security card
5. Individual NPI number
6. License or limited permit
7. CV
8. Two letters of recommendation

Application Process:
Each applicant is required to submit a completed application (including a personal statement, CV, two letters of recommendation, and proof of items #1 and #2 above) to:

Mark M. Souweidane, MD
Weill Cornell Medical College
520 East 70th Street, Box 99
New York, New York 10065
Phone: 212-746-2363
Fax: 212-746-7729

Application materials must be complete no later than December 31 of the year before the fellowship year. 

Our Fellows

Current Fellow:

Neelan J. Marianayagam M.D., Ph.D.

Neelan J. Marianayagam MD, PhD
From: United States
Dr. Marianayagam studied medicine at Tel Aviv University, then completed his training in surgery and neurosurgery at Duke University Medical Center, Rabin Medical Center, and Shaare Zedek Medical Center.

Our fellowship alumni are now pursuing exciting careers in neurosurgery, and we wish them the very best.

Claudia Kazun-Fischer, MD, and Mark M. Souweidane, MD, Weill Cornell Medicine, 2019

Claudia Kuzan-Fischer, MD
From: Zurich, Switzerland

Rafael Uribe Cardenas with Dr. Mark Souweidane

Rafael Uribe Cardenas, MD
From: Bogota, Colombia
Dr. Cardenas has returned to Weill Cornell Medicine to begin his neurosurgery residency.


Muhammad Burhan Ud Din Janjua, MBBS
Muhammad Burhan Ud Din Janjua, MBBS
From: Pakistan

Assem Abdel Latif with Dr. Mark Souweidane

Assem Mounir Metwalli Abdel-Latif, MBBS
From: Ain Shams, Cairo, Egypt
Dr. Souweidane and Dr. Schwartz presented at an international meeting in Cairo, invited by Dr. Assem Abdel-Latif. Find out more about that meeting

Dr. Maria Santos with Dr. Roger Hartl
Maria M. Ferreira Neves dos Santos, MD
From: Lisbon, Portugal
Dr. Santos went on to a Global Health Fellowship in Tanzania. Read about her experiences there.

Konstantinos Margetis, Weill Cornell Medicine neurosurgical fellow
Konstantinos Margetis, M.D, MRCS
From: Athens, Greece


Neurological Surgery 525 E. 68th St., Starr 651, Box 99 New York, NY 10065