PLEASE NOTE: Due to COVID-19, New Patient Information Sessions are not currently being held and patient support groups are being conducted virtually.

Change Your Life with Weight Loss Surgery at Boston Medical Center

If you or someone you know lives with obesity, you understand the struggles of endless weight-loss programs that have shown no results, exhaustion from small tasks, and the increase of various health risks due to weight.

At Boston Medical Center, our team understands these challenges and works with each patient to find the best treatment and surgical option. Our surgeons have performed thousands of successful surgeries and our Bariatric Surgical Program is recognized as a MBSAQIP-Accredited Comprehensive Center.

American College of Surgeons | MBSAQIP Accredited Center Quality Program | American Society for Metabolic and Bariatric Surgery

Weight loss surgery can help you lose weight and provide an excellent tool for managing your weight and weight-related health problems.

New Patient Information Sessions

If you are interested in learning more about the Bariatric Surgery Program at Boston Medical Center, please call our office at 617-414-8052 to register for a New Patient Information Session. It provides an opportunity to meet our surgeons, receive introductory information on surgical options, and learn about the path to surgery in a friendly, supportive environment. These sessions are offered in both English and Spanish. 

Make an Appointment

To make an appointment, or if you have any questions about weight loss surgery at Boston Medical Center, please call us at 617.414.8052


Watch our informative video about obesity, procedures we offer, and how we can help you on your journey to achieving lasting weight loss. 

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Treatments & Services

At Boston Medical Center, we offer two types of weight loss surgery: gastric bypass and gastric sleeve (vertical sleeve gastrectomy). These procedures, which are commonly performed laparoscopically, limit the amount of food you can eat and can achieve excellent weight loss. There are some important differences to consider when deciding which procedure is best for you and your surgeon.

Gastric Bypass Surgery

Gastric bypass surgery is a surgical procedure in which the stomach is made smaller by stapling and dividing it into two compartments. The smaller compartment is called a pouch. The larger part of the stomach is bypassed, meaning that the food is going around it, rather than passing through it.

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Gastric Sleeve (Vertical Sleeve Gastrectomy)

With the sleeve gastrectomy or gastric sleeve, your stomach will be made smaller by stapling and dividing the majority of your stomach and removing it from your body. The remaining stomach is shaped like a long narrow tube with a small reservoir for food at the end of the tube.

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Revisional Weight Loss Surgery

The weight loss surgeons at Boston Medical Center have extensive experience in the field of revisional surgery for weight loss. This includes the removal of adjustable gastric banding devices (the Lap Band®), or conversion to another type of weight loss surgery.

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Our Team

Bariatric Surgeons

Donald T Hess, MD

Chief, Section of Bariatric Surgery
Director, Bariatric Surgery Program
Assistant Professor of Surgery, Boston University School of Medicine

Abdominal Surgery, Bariatric Surgery, Gallbladder Surgery, Gastric Bypass Revision Surgery, Gastroesophageal Reflux Disease Surgery, General Surgery, Hernia Surgery, Laparoscopic Cholecystectomy, Laparoscopic Gastric Bypass, Laparoscopic Sleeve Gastrectomy, Minimally Invasive Surgery

Brian J Carmine, MD

Assistant Professor of Surgery, Boston University School of Medicine

Bariatric (Weight Loss) Surgery, Minimally Invasive Surgery, Gastroesophageal Reflux Disease (GERD) Surgery, Hernia Surgery, Robotic Surgery

Cullen O Carter, MD

Assistant Professor of Surgery, Boston University School of Medicine

General surgery, Bariatric surgery, Hernia Repair, Upper GI surgery

Luise I Pernar, MD

Assistant Professor of Surgery, Boston University School of Medicine

Bariatric (Weight Loss) Surgery, Laparoscopic Bariatric Surgery, Hernia Surgery, Gallbladder Surgery, Foregut Surgery, Endoscopy

Luise Pernar MD Headhot Weight Loss Surgery Department

Registered Dietitians

Wendy Anderson, MS, RDN, LDN
Senior Bariatric Surgery Dietitian

Wendy has been practicing as a bariatric dietitian since 1999. She has and continues to be the lead dietitian in several obesity-related research projects including the implementation of Boston Medical Center’s surgical weight-management clinical database. She earned a Bachelor of Science degree in Nutrition Sciences at the University of Vermont and completed her Dietetic Internship and Master Degree at the University of Rhode Island. She has authored multiple publications in the field of obesity medicine which have been published in peer-reviewed journals. She has presented topics on bariatric surgery at obesity conferences including Obesity Week and the Boston Nutrition Obesity Research Center (BONRC). Prior to her current position as Senior Bariatric Surgery Dietitian, she was the dietitian for the obesity program at Jewish Memorial Hospital located in Boston, MA. She is a member of the Weight Management Practice Group affiliated with the Academy of Nutrition and Dietetics. Wendy’s special interests include obesity research, bariatric surgery, weight management, integrative medicine, and mindful eating practices.

Claire LeBrun, MPH, RDN, LDN
Bariatric Surgery Dietitian

Claire has been practicing as a registered dietitian since 1986. She earned a Bachelor of Science degree in Food Science and Human Nutrition from the University of Florida (1986) and a Master of Public Health degree in Health Promotion/Disease Prevention from Florida International University (1992). She has also completed graduate level counseling courses and extensive training in "Motivational Interviewing", a non-authoritative counseling style, which has been proven effective in eliciting health-related behavior change.

Before becoming a bariatric surgery dietitian at Boston Medical Center, she was the Senior Nutritionist at the Medical Faculty Associates of George Washington University. Claire was in private practice before this, and held positions at both the George Washington University Lipid Research Clinic as a Research Assistant and the George Washington University Weight Management Program as the Director of Nutrition Services for 12 years. She specializes in bariatrics (weight management), endocrinology, cardiology and gastrointestinal nutrition disorders.

Currently, as a fulltime bariatric dietitian at BMC, Claire sees patients for pre and post-operative weight loss surgery and leads both bariatric educational classes and support groups.

Lesley Levitt, MS, RDN, LDN
Bariatric Surgery Dietitian

Lesley completed her dietetic education at Simmons College along with a Master of Science in Applied Nutrition from Northeastern University. Following her academic work, she completed a clinical internship at Mount Auburn Hospital where she was trained in their Surgical Weight Loss Program. Lesley comes from a background in nutrition research focused on obesity and weight management. Prior to coming to Boston Medical Center, she was involved in weight loss research studies at both Tuft's University in the Energy Metabolism lab, and Boston Children's Hospital in the New Balance Foundation Obesity Prevention Center.

Patient Resources

Frequently Asked Questions

Our Frequently Asked Questions section refers to United States-based generally standard and accepted practices. As always, please check with your physician to determine their practices, guidelines and what they recommend for you.

Minimally Invasive Surgery

For the last decade, laparoscopic procedures have been used in a variety of general surgeries. Many people mistakenly believe that these techniques are still "experimental." In fact, laparoscopy has become the predominant technique in some areas of surgery and has been used for weight loss surgery for the past 6 years at Boston Medical Center.

Obesity and Your Health

Obesity results from the excessive accumulation of fat that exceeds the body's skeletal and physical standards. According to the National Institutes of Health (NIH), an increase in 20 percent or more above your ideal body weight is the point at which excess weight becomes a health risk.

Weight Loss Surgery Patient Information

In preparation for your weight-loss surgery, we ask that you attend a cooking class to learn how to prepare simple, healthy, and affordable recipes that will help your stomach heal properly, help you lose the right amount of weight, and prevent nutritional deficiencies after your surgery.