After completing his fellowship in colon and rectal surgery at Mayo Clinic in Rochester, MN, in 2011, Dr. Sullivan joined the faculty of Emory's Division of Surgical Oncology and the Winship Cancer Institute.

He specializes in diseases of the colon and rectum, with expertise in the surgical management of primary and recurrent malignancy of the colon and rectum, inflammatory bowel disease (ulcerative colitis and Crohn's disease), diverticular disease, and anorectal disorders. He has a particular interest in the application of minimally invasive techniques including the use of laparoscopic and robotic approaches to treat diseases of the colon and rectum.

Dr. Sullivan works in close collaboration with gastrointestinal specialists, medical oncologists, radiation oncologists, urologists, and interventional radiologists to develop individualized and multidisciplinary management strategies for each patient.