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Gastrointestinal Metabolic and Bariatric Surgery

About Us

GI Metabolic and Bariatric Surgery at Weill Cornell Medicine is dedicated to helping patients accomplish their health and weight loss goals.

We specialize in laparoscopic bariatric surgery, which uses the most advanced techniques to perform weight loss surgery with minimal incisions and a faster recovery time.

Our physicians are experts in the field as well as active researchers who work to find new and better ways to treat obesity. As part of that effort, patients may be able to participate in clinical trials, giving them access to treatments that might not be available elsewhere.

Our doctors are also faculty members of Weill Cornell Medical College in New York City and actively train the next generation of GI metabolic and bariatric surgeons. 

Since 2012, we are proud to have met the criteria for a Comprehensive Center with Adolescent as per the American College of Surgeons Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program. This designation goes to centers that engage in ongoing quality improvement initiatives, closely track their results, and provide complete specialized care for all patients, including those with the most challenging and complex conditions, in order to ensure the best outcomes.

In addition to surgery, our program includes counseling, medical obesity screening, and extensive follow-up by an expert team of board-certified bariatric surgeons, advanced nurse practitioners, physician's assistants, and registered dietitians. We also offer one-on-one peer support in addition to professionally moderated support group meetings for anyone considering surgery, those who have had surgery, or for the patient's family members or friends.


Patient Care

Our Locations

Upper East Side
520 East 70th Street, Starr 8
New York, NY 10021
Upper East Side
1283 York Ave, 9th Floor
New York, NY 10021

Patient Services

Weill Cornell Medicine has a history of excellence in patient care, offering cutting-edge therapies and individualized care throughout New York City. Learn more about the services we offer below.

Our Surgeons

Dr. Afaneh
Cheguevara Afaneh, M.D.

Phone: (646) 962-8462

Gregory F. Dakin, M.D.

Phone: (646) 962-8462

Clinical Trials

Through extensive and innovative research programs, Weill Cornell Medicine is also focused on the development of new techniques and therapies that promote better outcomes and improve the quality of life for patients following surgery. Click here to learn more about our open clinical trials in New York City.


This fellowship offers fellows a unique opportunity to train under world-renowned leaders in the field at two of the most respected medical institutions in the country.

Find a Physician

Surgical Services
Weill Cornell Medicine Surgery

Visit our Surgery YouTube channel to view our video library.