William J. Harb, MD is a board-certified colorectal surgeon, specializing in the treatment of diseases of the colon and rectum. Dr. Harb’s specialty includes the diagnosis, treatment and management of colon and rectal cancer, inflammatory bowel disease (Crohn’s disease and ulcerative colitis), as well as common problems such as hemorrhoids, anal fissures, and fistulas. Dr. Harb concentrates the majority of his practice in caring for patients with anorectal problems.


Upon completion of both his medical degree and general surgery training at the University of Tennessee in Memphis, Dr. Harb furthered his training at the renowned M.D. Anderson Cancer Center in Houston, continuing with a colorectal surgery fellowship in Pittsburgh. Dr. Harb is published within several national journals and has presented his research nationally. He is an Associate Editor of Diseases of the Colon and Rectum, the premier journal in the field of colorectal surgery.


Dr. Harb’s clinical interests include inherited colon and rectal cancer. Through his dedication and national recognition with hereditary colorectal cancer, genetic testing has become an integral part of his practice. He is a board member of Lynch Syndrome International, a nonprofit organization dedicated to patients with Lynch syndrome.


Dr. Harb is a fellow of both The American College of Surgeons and The American Society of Colon and Rectal Surgeons, as well as a member of the Tennessee Medical Association, the Nashville Academy of Medicine and the Nashville Surgical Society. He serves as the as Vice-chairman of the Healthcare Economics Committee for the American Society of Colon and Rectal Surgeons. Dr. Harb and his partners of The Colorectal Center are active members of the St. Thomas Midtown and Centennial Hospital medical staffs; they treat patients at their Midtown office and regional clinic locations.


In his personal time, he enjoys reading, hunting, and scuba diving, as well as being an avid Tennessee Vols fan. He also enjoys spending time with his wife and girls. Dr. Harb is currently accepting new patients.