Biography & Education


Providence Colorectal Program is led by Mark Whiteford, M.D., FACS, FASCRS, a physician and surgeon who specializes in minimally-invasive treatment of colon and rectal cancer, diverticulitis, ulcerative colitis and Crohn’s disease.

Dr. Whiteford is a leader in the use of laparoscopic surgery for colorectal cancer, and he is one of a handful of surgeons nationally practicing transanal endoscopic surgery (TES), a highly-specialized, minimally-invasive technique to remove large rectal polyps and early rectal cancers.

"Amid this high-tech and fast-paced world of medicine, my greatest satisfaction comes from working with patients one-on-one to help them gain insight to their illness, and then together develop a treatment plan that meets their individual needs."

Dr. Whiteford graduated from the University of Maryland School of Medicine and later completed his general surgery internship and residency at Thomas Jefferson University Hospital in Philadelphia, PA. Dr. Whiteford finished his fellowship in colon and rectal surgery at the Barnes-Jewish Hospital in St. Louis, MO. He brings The Oregon Clinic - Gastrointestinal and Minimally Invasive Surgery (GMIS) several honors and awards, and was the 2007 recipient of the Society of the Alimentary Tract Traveling Fellowship in Surgical Endoscopy. He was also inducted in the Marquis Who's Who in America publication in 2010. Dr. Whiteford is an Affiliate Professor of Surgery at OHSU.

Dr. Whiteford is an innovator and renowned expert in minimally invasive colorectal surgery including laparoscopic surgery and transanal endoscopic microsurgery (TEM, TAMIS). He is a sought-out teacher and lecturer, receiving invitations from the American College of Surgeons, American Society of Colon and Rectal Surgeons, the Society of American Gastrointestinal and Endoscopic Surgeons and has lectured in over a dozen countries worldwide. Transanal Total Mesorectal Excision (TaTME), the newest form of rectal cancer surgery, was founded on research and clinical innovation at The Oregon Clinic Gastrointestinal and Minimally Invasive Surgery division. (

Areas of expertise

Colon and Rectal Cancer and Polyps, Inflammatory Bowel Disease (IBD), Diverticulitis, Minimally Invasive & Sphincter Sparing Surgery, Laparoscopic Treatment of Colon and Rectal Diseases

  • BS, Washington and Lee University, Lexington, VA, 1987
  • MD, University of Maryland School of Medicine, Baltimore, MD, 1991
  • General Surgery Internship & Residency, Thomas Jefferson University Hospital, Philadelphia, PA, 1991-1998
  • Fellowship, Colon & Rectal Surgery, Barnes-Jewish Hospital, St. Louis, MO, 1999
  • English

Care Locations

The Oregon Clinic-Gastrointestinal & Minimally Invasive Surgery
4805 NE Glisan St.
Suite 6N60
Portland , OR 97213
The Oregon Clinic-Gastrointestinal & Minimally Invasive Surgery at Gateway
1111 NE 99th Ave.
Suite 301
Portland , OR 97220
Fax 503-281-0575
The Oregon Clinic-Gastrointestinal & Minimally Invasive Surgery at St. Vincent
9155 SW Barnes Rd.
Suite 436
Portland , OR 97225
Fax 503-416-7377