Surgeons and Providers


Graham J. Sellers, M.D., F.A.S.C.R.S.

Dr. Sellers is a board certified Colon & Rectal Surgeon. He specializes in all surgical aspects of colon and rectal disease, including cancer, inflammatory bowel disease, and complex proctology. He uses both traditional Open as well as minimally invasive Laparoscopic and Robotic techniques. He generally manages the majority of hemorrhoidal problems in the office setting using painless, nonsurgical options. He received his medical degree from the Mt. Sinai School of Medicine and completed his General Surgery residency at Columbia Presbyterian Medical Center in New York. In 1998, Dr. Sellers concluded his fellowship at the Colon & Rectal Clinic of Orlando. During residency and fellowship he obtained training in advanced laparoscopic management of colorectal pathology.

He is a former Chairman of the Department of Surgery at Presbyterian/St. Lukes Medical Center, Denver. He currently provides specialized colon and rectal cancer care through his participation with the SCL St. Joseph Cancer Centers of Colorado, Denver. He co-manages the colon and rectal surgery clinical rotation for general surgery residents at St. Joseph Hospital. He is a member of the American Cancer Society Colorado Colon & Rectal Cancer Taskforce. He speaks regularly to physicians around the state about colorectal cancer screening and management. He has been voted one of Denver’s “Top Docs” in 5280 Magazine for the past twelve years.

Dr. Sellers is married with two children. He currently sees patients at three offices, located in central Denver, Aurora, and Lafayette. Please find Dr. Sellers at

Amherst College, B.A., 1985
The Mount Sinai School of Medicine, M.D., 1991
Columbia Presbyterian Medical Center, New York, Internship and Residency, 1992-1997
Orlando Regional Medical Center, The Colon & Rectal Clinic of Orlando, Fellowship, 1998

Board Certification:
American Board of Colon and Rectal Surgery

Fellow, American Society of Colon and Rectal Surgeons
Associate Clinical Professor of Medicine, University of Colorado
Member, Denver Medical Society
Member, Colorado Medical Society
Member, American Medical Association

Colon and Rectal Clinic of Colorado, SurgOne, P.C.
1601 E. 19th Ave #6300
Denver, CO 80218
(303) 839-5669

Colon and Rectal Clinic of Colorado, SurgOne, P.C.
1400 S. Potomac St, #120
Aurora, CO 80012
(303) 839-5669

Colon and Rectal Clinic of Colorado, SurgOne, P.C.
150 Old Laramie Trail, Suite 130
Lafayette, CO 80026
(303) 839-5669