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GI Metabolic and Bariatric Surgery

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(646) 962-8462

About Us

Weill Cornell Medicine’s comprehensive weight loss surgery program provides long-term solutions for patients who continually struggle with their weight.

Ranked #14 nationwide, Weill Cornell Medicine’s Division of Gastrointestinal Metabolic and Bariatric Surgery is proud to partner with NewYork-Presbyterian, ranked #6 in the nation and #1 in NYC  by US News and World Report.

Our physicians are concerned about how heart disease, high blood pressure, diabetes, arthritis, and even sleep disorders are often the consequences of excessive weight. We understand it can be very challenging, and while many people can succeed in achieving some weight loss, sustaining that weight loss or maintaining optimal weight is often difficult, and for some, impossible. 

To help patients lose weight, we offer counseling, medical obesity screening, surgery, if indicated, and extensive follow-up by an expert team of board-certified bariatric surgeons, including gastric sleeve surgeons, as well as advanced nurse practitioners, physician's assistants, and registered dietitians.

GI Metabolic and Bariatric Surgery in New York

Our world-renowned surgeons have pioneered innovative surgical procedures that are at the forefront of weight-loss techniques, as well as laparoscopic procedures for a broad range of digestive disorders. We specialize in minimally invasive bariatric surgery, enabling our patients to undergo weight-loss procedures that can be performed through small incisions, which facilitates faster recovery. At Weill Cornell Medicine, our weight loss surgery options include gastric bypass surgery and vertical sleeve gastrectomy, all performed at NewYork-Presbyterian, the #1 hospital in NYC 17 years in a row.

Most recently, the American College of Surgeons has accredited NewYork-Presbyterian/Weill Cornell Medical Center as a Center of Excellence in bariatric surgery with the highest possible designation – the first program to be so named in New York State and one of only seven nationwide.

Our Services

Our Locations

520 East 70th Street, Starr 8
New York, NY 10021
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520 East 70th Street, Starr 8
New York, NY 10021
Get Directions


Dr. Alfons Pomp, the chief of laparoscopic and bariatric surgery, describes the treatments he and his team of specialists offer, including weight-loss surgery and procedures in the esophagus and stomach.

What Our Patients Are Saying

Polonia Davila

"Dr. Afaneh is a Wonderful Surgeon. I want to thank him for his help in losing 22 pounds! Not only has he guided me he has made himself available to me with all my questions. His staff has been helpful as well. I would recommend him to anyone."

Oct 16, 2017
Source: Google
Dharar A.

"Amazing! Dr. Adiana is understanding, and helps create an attainable goal and diet for her clients."

Sep 21, 2017
Source: ZocDoc
Talking about Rasa Zarnegar, M.D.

"I went to Dr Zarnegar for a redo of a heller myotimy, disease is achalasia. I am so happy with the results. I can eat normally and swallow foods that in the past wouldn't go down or would get stuck. The staff and doctors working with Dr. Zarnegar were very professional and skilled at what they do. I am so happy with the results. The recovery was so much shorter than the first myotimy I had performed( at a different hospital). If you have achalasia this is the team you want working on you. Highly skilled, proffesional and all around good people."

Sep 03, 2017
Source: RateMDs
*Individual results may vary