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The Division of Gastrointestinal Surgery

The Division of Gastrointestinal Surgery at UNC is composed of Drs. Mark J. Koruda, Timothy M. Farrell, and D. Wayne Overby, Timothy S. Sadiq, and Hartwig Bunzendahl. Drs. Koruda and Farrell are board certified by the American Board of Surgery, members of the Society for Surgery of the Alimentary Tract and fellows of the American College of Surgeons. The practice specializes in gastrointestinal surgery, performing over 1200 operations per year.

All aspects of patient care are coordinated by GI Surgery Nurse Coordinators Amanda Kircher, RN, Ada Anderson, RN, and Karen Colton, RN. Coordinating care is a crucial element and hallmark to the Gastrointestinal patient.

The Division collaborates closely with the Division of Digestive Diseases and Nutrition at UNC, and is associated with UNC Health Care, located in Chapel Hill, North Carolina. The hospital is a 680-bed tertiary care, teaching facility that serves the surrounding southeastern states.

Dr. Koruda's practice is centered on the surgical management of inflammatory bowel disease (IBD). He performs approximately 150 operations per year for Crohn's disease and ulcerative colitis, employing novel techniques for the management of IBD-related strictures, fistulas and perineal disease. Ileal pelvic pouches, continent ileostomies, revisions of stomal complications, sphincter-preserving operations for rectal cancer, rectal prolapse and anal incontinence, and surgical management of enterocutaneous fistula and short bowel syndrome are the mainstay of the practice. He serves as co-director of the Adult Nutrition Support Service at UNC.

Dr. Farrell is fellowship trained in Minimally Invasive Surgery, with a practice focused on advanced laparoscopy for management of gastroesophageal reflux disease, achalasia, morbid obesity and hiatal hernias. He co-directs the Center for Esophageal Diseases and Swallowing and the Center for Bariatric Surgery, as well the Laparoscopic Institute of North Carolina Laparoscopic (LINC@UNC), a teaching center for surgeons-in-training that maintains a fellowship in advanced GI surgery and laparoscopy, a state-of-the-art surgical skills laboratory, and a series of continuing education courses

Dr. Overby's practice focuses on minimally invasive foregut surgery, gastroesophageal reflux disease, achalasia, hiatal hernias, morbid obesity, Barrett's esophagus, and laparoscopic obesity surgery with the lap band. Dr. Overby is certified by the American Board of Surgery and a member of SAGES-The Society of American Gastrointestinal and Endoscopic Surgeons. He completed his fellowship in Advanced GI Surgery and Laparoscopy at UNC, Department of Surgery.

Dr. Sadiq's practice focuses on colon and rectal cancer, laparoscopic colorectal surgery, Crohn's disease, ulcerative colitis, anorectal disease, hereditary colorectal cancer, and rectal prolapse. Dr. Sadiq completed his fellowship in Colon and Rectal Surgery at the Lahey Clinic in Burlington, Massachusetts. He is board certified by the American Board of Surgery and an Associate Fellow of the American College of Surgeons. Dr. Sadiq is a member of the American Society of Colon and Rectal Surgeons.

Dr. Bunzendahl directs the UNC Hernia Center. He specializes in the care of abdominal wall hernias in adults. He received his Doctor of Medicine degree from University of Heidelberg, Germany. He completed his training at the Medizinische Hochschule Hannover, Germany. His areas of interest include General Surgery, hepatobiliary surgery and organ transplantation.

Dr. Herbst came to UNC in 1973 as the department's first surgeon dedicated to surgery of the Gastrointestinal Tract. He retired from clinical practice in 2001 and continues to participate in teaching students and residents. His interests include GI Endocrinology, Bariatric Surgery, Inflammatory Bowel Disease, and Laparoscopic Surgery.

Gastrointestinal Surgery
Division of Gastrointestinal Surgery
4035 Burnett-Womack Building
CB# 7081
Chapel Hill, NC 27599-7081

Office: 919-966-8436
FAX: 919.966.8440


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