NYU Grossman Long Island School of Medicine’s Advanced Endoscopy Fellowship Program is a one-year training program that provides a comprehensive advanced endoscopy experience. This fellowship is offered to those who have completed a three-year gastroenterology fellowship accredited by the Accreditation Council for Graduate Medical Education (ACGME). We accept one fellow per year starting on July 1.

Program Details 

This program is led by the advanced endoscopy faculty from the Division of Gastroenterology at NYU Grossman Long Island School of Medicine. Our overall volume of interventional procedures includes both endoscopic ultrasound (EUS) and endoscopic retrograde cholangiopancreatography (ERCP). We diagnose and treat a wide array of gastrointestinal and liver conditions, including hilar strictures, difficult stones, and pancreatobiliary malignancy.

Our advanced endoscopists perform interventional EUS procedures, including ablation, fiducial insertion, pseudocyst drainage/necrosectomy, liver biopsy, coil embolization, EUS-guided pancreatobiliary access, and EUS-guided gastroenterostomy. ERCP procedures include altered anatomy/endoscopic ultrasound-directed transgastric ERCP (EDGE), ampullectomy, pancreatobiliary malignancy, and pancreatic endotherapy for chronic pancreatitis.

Additional common procedures include the following:

• luminal stents
• radiofrequency ablation (RFA)
• cryotherapy
• double balloon enteroscopy
• Spyglass DS/Slim scope cholangioscopy/pancreatoscopy
• Cellvizio confocal microscopy
• anti-reflux procedures, including transoral incisionless fundoplication (TIF) and anti-reflux mucosectomy (ARM)
• bariatric procedures, such as transoral outlet reduction with the overstitch and endoscopic sleeve gastrectomy.

Endohepatology procedures including endoscopic ultrasound (EUS) guided liver biopsy and portal pressure gradient measurements are also performed.

Third space endoscopy procedures, which are used in treating Barrett's, early gastric cancer, duodenal/ampullary adenomas, large colonic adenomas and subepithelial lesions, include the following:

• endoscopic mucosal resection (EMR)
• endoscopic submucosal dissection (ESD)
• submucosal tunneling endoscopic resection (STER)
• endoscopic full-thickness resection (EFTR)
• full-thickness resection device (FTRD)

We also perform peroral endoscopic myotomy (POEM) for achalasia, Zenker’s diverticulum, and gastroparesis.

We involve advanced endoscopy trainees in the most challenging and/or educational procedures that we perform, including novel techniques and technologies. Our advanced endoscopists perform approximately 1,000 EUS and 550 ERCPs and other interventional procedures over one year.

Given our program's emphasis on innovation and advancement of the field of interventional endoscopy, we are looking for candidates with intellectual curiosity, solid research skills, a strong commitment to academics, and a very strong work ethic. There are no responsibilities outside of advanced endoscopy and research. The advanced trainee participates in approximately 35 advanced procedures per week, has the opportunity to participate in pig lab and other scheduled research activities, rounds on the interventional service visiting inpatients in conjunction with the categorical biliary fellow and an interventional physician assistant (PA), and sees patients at the interventional clinic for about one-half day per week. A typical clinical week involves approximately 50 hours of interventional clinical work. Research, including data collection, analysis, manuscript preparation, video editing, and pig lab work, is mostly accomplished during weekends and the time allotted for preparation for major meetings.

The advanced fellow also further develops their skills and abilities in triage and clinical decision-making, gaining experience with procedure indications and alternatives, preparation and follow-up care, and effective communication with consulting physicians, patients and their families and nursing staff. Fellows also have the ability to attend regional and national conferences to further their knowledge.

Program Faculty  

Jessica Widmer, DO
Chief, Division of Gastroenterology
Director, Advanced Endoscopy Fellowship 

Amar Manvar, MD 
Assistant Professor, Department of Medicine at NYU Grossman Long Island School of Medicine 
Associate Program Director, Gastroenterology, NYU Grossman Long Island School of Medicine 

Galen Leung, MD 
Assistant Professor, Department of Medicine at NYU Grossman Long Island School of Medicine 
Chief, Advanced Endoscopy NYU Langone Hospital—Long Island 

Contact Us 

For questions about our Advanced Endoscopy Fellowship Program, please contact Alexis Warren, administrative coordinator, at Alexis.Warren@NYULangone.org or 516-663-4623.