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Bariatric (Weight Loss) Surgery

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Yale New Haven Health offers a comprehensive weight-loss program for the patient with a body mass index (BMI) of 40+ or 35 with accompanying health problems — from pre-operative treatment to post-surgical strategies for maintaining health. Led by a dedicated team of experts in medicine, nursing, nutrition, psychology and surgery, our Bariatric Surgery Program is recognized for its safety, efficiency, sensitivity and expertise.

About Weight Loss Surgery

About one-third of adults in the United States are considered obese, according to the most recently available statistics from the Centers for Disease Control and Prevention (CDC). When overweight reaches the stage where it affects your health and causes or worsens certain health issues, it is considered "severe" or disease-causing obesity. A ratio of weight to height called body mass index is generally used to classify the degree of overweight. An individual is considered to have severe obesity at a BMI of 40 or at 35 if health problems such as type 2 diabetes, high blood pressure or obstructive sleep apnea are also present.

Obesity isn't simply a result of overeating. There are many contributing factors such as genetics, environmental, physiologic, metabolic and certain medications. Studies have demonstrated that dieting and exercise programs have a limited long-term success in individuals with severe obesity.

Weight-loss surgery is the most effective treatment of severe obesity. Weight-loss surgery and healthy lifestyle changes can result in significant weight loss and health improvement.

Our surgeons conduct free webinars to give potential patients and their families information on the latest advances in weight-loss surgery, as well as the services provided at Yale New Haven Health. 

Available Procedures

Yale New Haven Health offers two different, minimally invasive (i.e. laparoscopic) bariatric operations throughout our health system. In addition, revisions of previous weight-loss surgery procedures are performed.  

Learn more about weight-loss procedures

Surgery Team

Yale New Haven Health bariatric surgery physicians are recognized for their expertise and innovation. They are fellowship-trained in minimally invasive bariatric surgery. In fact, they have taught laparoscopic techniques to other surgeons around the country. In addition to being recognized for their surgical skill, our bariatric surgeons are also well known for their research, uncovering new approaches to weight loss surgery.

Learn more about our research to improve care and outcomes for our patients

Nationally Accredited Bariatric Surgery Program by MBSAQIP


Lawrence + Memorial Hospital’s bariatric surgery program has been accredited as a Low Acuity Center by the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP®), a joint Quality Program of the American College of Surgeons (ACS) and the American Society for Metabolic and Bariatric Surgery (ASMBS).

The MBSAQIP Standards, Optimal Resources for Metabolic and Bariatric Surgery, ensure that metabolic and bariatric patients receive multidisciplinary medical care, which improves patient outcomes and long-term success. MBSAQIP-Accredited centers offer preoperative and postoperative care designed specifically for patients with obesity.

To earn MBSAQIP Accreditation, L+M met essential criteria for staffing, training, facility infrastructure and patient care pathways, ensuring its ability to support patients with obesity. The hospital also participates in a national data registry that yields semi-annual reports on the quality of its surgical outcomes and identifying opportunities for quality improvement.

Contact Us

Bariatric Center

Bariatric Surgery Webinars

Bariatric Surgery Webinars

Join us for a free, live webinar to learn how to improve your health with bariatric weight-loss surgery.

bariatric video

Interested in learning more about bariatric surgery?

See how our experts are with you throughout your weight-loss journey.