Chief and Professor of Surgery
Procedures for malignant and benign diseases of the colon, rectum, and anus including colon, rectal and anal cancer; inflammatory bowel disease; rectal prolapse; diverticulitis; risk-reducing surgery for Lynch Syndrome; Polyposis Syndromes; young-onset and other forms of inherited colorectal cancer with a focus on minimally invasive techniques including laparoscopic, robotic and transanal microscopic surgery leading to preservation of gastrointestinal, bladder and sexual function.
Hereditary and early age-of-onset colorectal cancer; assessment of rectal cancer response to preoperative therapy.
- MBA: Brandeis University, Waltham, MA 2019
- Colorectal Surgery Fellowship: Lahey Clinic Medical Center, Burlington, MA 1990 – 1991
- Research Fellowship: Columbia Presbyterian Medical Center, New York, NY 1985 – 1987
- Residency: Columbia Presbyterian Medical Center, New York, NY 1983 – 1990
- MPH: Yale University School of Medicine, New Haven, CT 1988
- MD: Yale University School of Medicine, New Haven, CT 1983
- BA: New York University, New York, NY 1978
Surgery – Board Certified, 1991
Colon and Rectal Surgery – Board Certified, 1994
Search for publications on PubMed using Guillem J* as search criteria