Dennis G. Begos, M.D., F.A.C.S., F.A.S.C.R.S.

General and Colorectal Surgery
Laparoscopic Colorectal Surgery

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Weight Loss Surgery

and Dr. Sandor's services have moved to:


to Dr. Begos

who was selected again as one of of Boston’s top doctors by Boston Magazine in 2015

top doctors

CSA Vein Center

receives accreditation by the IAC:

IAC SealCSA is the first vein practice in Northeast Massachusetts to be fully accredited as a Certified Vein Center by the IAC (Intersocietal Accreditation Commission).
 For details, click here...

Hospital Affiliations
and Appointments

Winchester Hospital
Chairman, Department of Surgery

Lawrence Memorial Hospital
Attending Surgeon

Melrose-Wakefield Hospital
Attending Surgeon

Tufts Medical Center
Attending Surgeon

Academic Pursuits:

Dr. Begos is involved on a daily basis in the teaching of medical students from the Tufts University School of Medicine and surgical residents from Tufts Medical Center, as well as Family Medicine residents. He has won numerous teaching awards.

In addition to this, he has been involved in teaching other surgeons new techniques for laparoscopic colectomy, PPH hemorrhoidectomy, and laparoscopic ventral hernia repair. He has been a preceptor to other surgeons for these techniques throughout the northeast.
He has spoken at national and local meetings, and given many educational talks at local hospitals.

Dr. Begos has published numerous papers in peer reviewed journals on topics in general and colorectal surgery.


Medical Society Membership

American College of Surgeons
American Medical Association
Massachusetts Medical Society
Middlesex District Medical Society
Society of American Gastrointestinal and Endoscopic Surgeons
Yale Surgical Society
American Society of Colon & Rectal Surgeons
Crohn’s & Colitis Foundation of America
New England Society of Colon & Rectal Surgery
United Ostomy Association Specialty Board
Massachusetts Chapter of the American College of Surgeons


Dr. Begos was born and raised in New York. He graduated from New York Medical College and also spent 2 years studying in Dublin at the Royal College of Surgeons in Ireland.

He did his general surgery residency at Yale-New Haven Hospital where he spent one year doing research in laparoscopy and intestinal wound healing. He was honored by being named Administrative Chief Resident his final year there.

After Yale he spent a year doing a fellowship in Colon and Rectal Surgery at the Cleveland Clinic Foundation in Cleveland, Ohio.

Board certification

Dr. Begos is board certified in general surgery by the American Board of Surgery and in colon and rectal surgery by the American Board of Colon & Rectal Surgery. He is a Fellow of the American College of Surgeons and the American Society of Colon and Rectal Surgeons.

Clinical Interests:

Dr. Begos’s practice covers the full spectrum of colon and rectal surgery and general gastrointestinal surgery. He also has an interest in hernia repair, both inguinal and ventral/incisional hernias, and minimally invasive (laparoscopic) surgery for hernia repair.

He has a particular interest in surgery for colon and rectal cancer, especially in sphincter preservation for rectal cancer (surgery without the need for a permanent colostomy). He also has a strong interest and considerable experience in laparoscopic colon resections for cancer and for benign disease such as diverticulitis and colon polyps. He has published numerous papers on this topic, has spoken at national meetings, and has taught and supervised other surgeons in laparoscopic colon surgery.

Dr. Begos also has considerable experience in surgery for inflammatory bowel disease, including Crohn’s disease and ulcerative colitis. He has performed numerous laparoscopic bowel resections for patients with Crohn’s disease, and has performed many restorative proctocolectomies (J-pouches) for ulcerative colitis.

Other interests include new, less painful techniques for hemorrhoid surgery such as PPH hemorrhoidectomy, office treatment of hemorrhoids, surgery for fecal incontinence, surgery for gall bladder disease (laparoscopic cholecystectomy), and surgery for benign and malignant gastric diseases.