A colorectal surgeon in Oregon, Dr. Mark Whiteford offers comprehensive care for intestinal diseases that affect the colon, rectum and intestines.


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Meet Dr. Mark Whiteford, Colon & Rectal Surgeon at The Oregon Clinic  

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The Oregon Clinic - Gastrointestinal & Minimally Invasive Surgery  


Please Note: This link will direct you to a third-party website unaffiliated with MD.com (https://www.oregonclinic.com/patients/appointments), where you're able to request or schedule an appointment online with Dr. Mark Whiteford.

Accepting New Patients?

Yes, Dr. Mark H. Whiteford is accepting new patients at this office.


4805 NE Glisan Street, Suite 6N60, Portland, OR 97213-2933

Office Hours

  Open Lunch Close

Office Details

Doctor Specialty Colorectal Surgery
Accepting New Patients? Yes
Practice Specialty Gastroenterology
Group Practice Oregon Clinic
Languages Spoken English

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Insurance Accepted  

  • Most Major Providers

About Dr. Whiteford
Dr. Whiteford



Dr. Mark Whiteford graduated from University of Maryland School of Medicine in 1991 before completing a residency in General Surgery at Thomas Jefferson University Hospital in Philadelphia, PA from 1991 to 1998. He then completed a fellowship in Colon & Rectal Surgery at Barnes-Jewish Hospital in 1999.

Dr. Whiteford has one office in Oregon where he specializes in Colorectal Surgery.

Dr. Whiteford works with sixteen doctors including Dr. Jonathan Chun and Dr. David O'Brien.


Conditions Treated 

  • Anal Fissures
  • Anal Fistulas
  • Cancer of the Colon, Rectum and Anus
  • Diverticulitis
  • Hemorrhoids (Non-surgical Treatment)

Services & Procedures

  • Colonoscopy
  • Laparoscopic Treatment of Colon and Rectal Diseases
  • Sphincter Sparing Rectal Surgery
  • Surgery for ulcerative colitis and Crohn's disease
  • Transanal endoscopic microsurgery (TEM)

Education & Training  

Medical School


  • Thomas Jefferson University HospitalPhiladelphia, PA
    Residency in General Surgery • 1991 - 1998


  • Barnes-Jewish HospitalSaint Louis, Missouri
    Fellowship in Colon & Rectal Surgery • 1999


Hospital Affiliations

  • Providence Health & Services - Oregon
  • Providence Health & Services - Oregon

Languages Spoken  

  • English
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