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Nissin Nahmias, M.D., F.A.C.S., F.A.S.M.B.S.

General Surgery, Bariatric Surgery

Ph: 860.714.7128
Fax: 860.714.8076

220 Farmington Avenue
1st Floor
Farmington, CT 06032


General Surgery, Bariatric Surgery

Clinical Interests
All aspects of obesity management inclusive of medical management, surgery for obesity including laparoscopic gastric bypass and single incision “no scar” gastric banding, sleeve gastrectomy and, when indicated, revision procedures.

In Practice Since 2009

Practicing with Saint Francis Since 2009

Web Site

Board Status
Board Certified General Surgery, American Board of Surgery

Medical School: Anahuac University School of Medicine, Mexico City, Mexico
Residency: General Surgery, Albert Einstein Medical Center, Philadelphia, PA
Fellowship: Minimally Invasive and Bariatric Surgery, MCV-Virginia

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Dr. Nahmias has participated in and performed over 800 bariatric procedures while in training and as an attending physician; in addition he has managed many more complex bariatric patients before and after surgery. He maintains some of the lowest complication rates and some of the highest patient satisfaction rates in the country.

Dr. Nahmias was born and raised in Mexico City. He attended the Anahuac University School of Medicine and graduated at the top of his class with a full scholarship for academic achievement. His interest in bariatric surgery began during his general surgery residency at Albert Einstein Medical Center in Philadelphia, Pennsylvania, where he worked under the instruction of Dr. Ramsey Dallal, who has performed more than 3000 bariatric procedures.

After residency, Dr. Nahmias dedicated a year of his life to be trained in the techniques of bariatric surgery by Dr. James W. Maher and Dr. John M. Kellum, two of the Nation’s pioneers of academic bariatric surgery, completing a fellowship in laparoscopic and bariatric surgery at the prestigious Virginia Commonwealth University/Medical College of Virginia in Richmond, Virginia, one of the country’s leading institutions in the development of the field of bariatric surgery.

Dr. Nahmias has practiced bariatric surgery in the greater Hartford area has been a member of the medical staff at Saint Francis since 2009. The American Society of Metabolic and Bariatric Surgery has designated him a “Bariatric Surgeon of Excellence”. He is a Diplomat of the American Board of Surgery, and a Fellow of the American College of Surgeons and of the American Society for Metabolic and Bariatric Surgery. Dr. Nahmias is a member of the Society of American Gastrointestinal and Endoscopic Surgeons, the Society of Laparo-endoscopic Surgeons, the Connecticut Chapter of the American College of Surgeons, and the International Federation for the Surgery of Obesity and Metabolic Disorders.

In his academic role, Dr. Nahmias serves as a mentor for surgeons, surgical residents, medical students and affiliated healthcare practitioners. Dr. Nahmias is a clinical instructor at the H.H. Center for Education, Simulation and Innovation of the University of Connecticut Integrated General Surgery Residency Program. He is a proctor for the Fundamentals of Laparoscopic Surgery program. He is a member of the Minimally Invasive Surgery Fellowship program at Saint Francis Hospital and Medical Center, a member in the ASMBS Bariatric Surgery Training Committee, and a member of the Graduate Medical Education Committee of Saint Francis Hospital and Medical Center.

Dr. Nahmias' scientific work includes 5 peer-reviewed publications, 2 book chapters, and over 15 presentations in national and international meetings.

Practice Philosophy

I am committed to providing compassionate, comprehensive, and personalized patient care. I treat people who wish to lose weight primarily through the use of advanced, minimally invasive, surgical therapies. Patients who are suitable surgical candidates benefit greatly from these therapies, as well as from a healthy lifestyle that includes good nutritional habits and exercise.

Areas of Focus and Interests

I offer expertise in all aspects of obesity management inclusive of medical management, surgery for obesity including laparoscopic gastric bypass and single incision “no scar” gastric banding, sleeve gastrectomy and, when indicated, revision procedures.

General Comments

My surgical services are performed with a respectful, warm, personal manner in state-of-the-art, modern facilities. Advanced surgical techniques result in minimal discomfort, expedient recovery time, and excellent outcomes.

Group Practice Name
Saint Francis Medical Group, Inc.

Accepting New Patients:

220 Farmington Avenue 1st Floor
Farmington, CT 06032
Phone: 860.714.7128
Fax: 860.714.8076


Languages Spoken: English, Spanish