Division of Bariatric Surgery

Patient Care  |  Education  |  Research  |  Faculty  |  Contact  |  Support

Columbia’s Division of Bariatric Surgery is dedicated to leading the field of weight loss surgery through top-quality clinical care, academic excellence, and pioneering research.

Patient Care

At our Center for Metabolic and Weight Loss Surgery, Columbia’s Bariatric Surgery Division helps patients permanently lose excess weight not only through surgery, but also through personalized care. We offer multiple types of surgical procedures, depending on an individual’s needs and goals, including both traditional treatments like gastric bypass surgery and minimally invasive laparoscopic techniques. Our patients also get access to holistic weight-loss programs for long-term, healthy lifestyle choices, as well as educational seminars and support groups.

If you or a loved one is interested in receiving help from our team, learn more on our clinical care site:

Center for Metabolic and Weight Loss Surgery
Appointment Phone: (212) 305-4000
Fax: (212) 342-1996

Education & Training

We consider it our responsibility to help teach and train the next generation of bariatric surgeons. Through both residencies and CME events, we have made education a central aspect of our division. Learn more about our educational and training programs:

General Surgery Residency
Continuing Medical Education Events


Our ongoing research allows us to stay at the forefront of advances in weight-loss surgery and science. This includes innovations in minimally invasive surgical techniques, a more thorough understanding of metabolic issues, and much more. Take a closer look at our research and trials:

About Our Research
Current Trials


Marc Bessler, MD
Chief, Division of Bariatric Surgery

Francisco Guzman, MD


Abraham Krikhely, MD, FACS


Administrative Contact

Ana Rosario
Division Administrator, Bariatrics
Email: ar2605@cumc.columbia.edu
Phone: (212) 305-1028

News & Announcements

State of the Union: Weight Loss Surgery

An interview with Marc Bessler, MD, about what's new in surgical care for weight loss, individual treatment, patient support and quality of life after surgery.

Support Our Division

Your support is vital to helping us expand our services, continue our groundbreaking research, and offer as many patients as possible access to quality care. We rely on donations from both individuals and organizations year round in order to advance our patient care programs, as well as our many research, fellowship and educational initiatives. Learn how you can partner with us by providing vital funding for our work:

Ways to Help

More Contacts & Locations

Center for Metabolic and Weight Loss Surgery Patient Site

Appointments: (212) 305-4000

Washington Heights-NYP/Columbia University Irving Medical Center (Main Campus)

The Herbert Irving Pavilion
161 Fort Washington Avenue
5th Floor, Room 524
New York, NY 10032