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GI Metabolic and Bariatric Surgery

At this time, we have adjusted many appointments to Video Visits. Please contact our office for any scheduling questions.
(646) 962-8462
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About Us

The Weill Cornell Medicine GI Metabolic and Bariatric Surgery Program is dedicated to providing the most advanced diagnostic and surgical techniques to help you to accomplish your individual health goals.

The decision about whether to undergo surgery is often complex and very personal, which is why our team of world-renowned surgeons and clinicians provide individualized care alongside the latest advances in medicine.

Our specialties include:

  • Laparoscopic and robotic bariatric surgery, which uses the most advanced techniques to perform weight loss surgery
  • Metabolic surgery, which aims to put type 2 diabetes into long lasting remission
  • Minimally invasive gastrointestinal surgery, which addresses a broad variety of disorders, ranging from hernias to problems that arise in the stomach, gall bladder, esophagus and intestine
  • Medical weight management:¬†intensive medical treatment for obesity including lifestyle counseling, individualized nutrition and physical activity recommendations, and medication management.

Our use of cutting-edge, minimally invasive methods means small incisions, a short hospital stay (if any), and a quicker recovery from your operation. All surgery is performed at NewYork-Presbyterian, the #1 hospital in New York City for 17 years in a row. 

In addition to our surgical expertise, we also offer nutritional guidance and support groups as part of our comprehensive approach.

Contact us today to schedule a consultation or to learn more about our services.


Read the latest on wellness and preventive care for the whole family

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Dr. Gregory Dakin discusses Weill Cornell Medicine's minimally invasive approach, which results in less pain, shorter hospital stays and quicker recovery time.

What Our Patients Are Saying

Carmen Rivera

"Dr. Afaneh, was excellent. He explained everything in detail in a very comprehensive way. He was compassionate and respectful."

Nov 13, 2021
Source: Healthgrades
Talking about Rasa Zarnegar, M.D.

"Dr. Zarnegar is an excellent physician and surgeon. I am a forty-something man who very recently underwent an operation for a rather large hiatal hernia. Everything was a success. Yes, there was discomfort and pain to follow, but it has slowly subsided, and I am resuming somewhat normal activity and consumption of food during the past few weeks or so. I find Dr. Zarnergar to be caring, genuine, straightforward, professional, and communicative. He has since followed up via a virtual Zoom visit and answered all of my pertinent questions with patience and kindness. I would not hesitate to recommend his services and consider him one of the best doctors I've had."

Nov 05, 2021
Source: Healthgrades
Biggie Smalls

"My experience with doctor bellorin and his staff has been tremendous great treatment great service I thanks them so much for everything since day 1 they are the best A+"

Sep 04, 2021
Source: Google
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