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John M. Poneros, <span>MD</span>

John M. Poneros, MD

Gastroenterology (Board Certified, Primary Specialty)
Pancreatic Cancer
Cancer Care
Office Phone: (212) 342-1546
One of America's Top Doctors
Rated one of New York Magazine's Best Doctors


Dr. Poneros is an Associate Professor at Columbia University’s College of Physicians and Surgeons and the Program Director of the Advanced Endoscopy Fellowship. He also serves as the Associate Director of the Endoscopy Unit and is a Fellow of the American Society of Gastrointestinal Endoscopy and the New York Society for Gastrointestinal Endoscopy. Dr. Poneros graduated from Columbia University’s College of Physicians and Surgeons and completed his fellowship training at Massachusetts General Hospital. After serving on the faculty at Harvard Medical School, Dr. Poneros returned to New York Presbyterian Hospital in 2008. He has published widely on pancreaticobiliary diseases and the treatment and evaluation of Barrett’s esophagus. Dr. Poneros maintains a busy clinical practice and has been named a New York Magazine Castle Connolly Top Doctor.

Area of Expertise

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Columbia University College of Physicians and Surgeons

MD, Columbia College of Physicians and Surgeons

Residency: NewYork-Presbyterian Hospital/Columbia University Medical Center

Fellowship: Brigham and Women's Hospital

Fellowship: Massachusetts General Hospital


  • Poneros JM, Brand S, Bouma BE, Tearney GJ, Compton CC, Nishioka NS (2001) Diagnosis of Specialized Intestinal Metaplasia by Optical Coherence Tomography. Gastroenterology 120:7-12
  • Poneros JM, Tearney GJ, Shishkov M, Kelsey PB, Lauwers GY, Nishioka NS, Bouma BE (2002) Optical Coherence Tomography of the Biliary Tree during ERCP Gastrointestinal Endoscopy 55:84-88
  • Wang V, Hornick J, Sepulveda J, Maurer R, Poneros JM (2009) Low Prevalence of Invasive Adenocarcinoma at Esophagectomy: A 20 year experience Gastrointestinal Endoscopy 69:777-83