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


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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. Roy Breen.

Accepting New Patients?

Yes, Dr. Roy E. Breen 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. Breen
Dr. Breen



Dr. Roy Breen graduated from University Of California, Irvine, California College Of Medicine in 1978 before completing a residency in General Surgery at Oregon Health & Science University in Portland, OR from 1979 to 1984. He then completed a fellowship in Colon and Rectal Surgery at Sansum Clinic.

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

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


Conditions Treated 

  • Anal Cancer
  • Anal Condylomata
  • Anal Dysplasia
  • Anal Fissures
  • Anorectal Abscesses & Fistulas
  • Hemorrhoids
  • Pilonidal Disease

Services & Procedures

  • Colonoscopy
  • High Resolution Anoscopy

Education & Training  

Medical School

  • University Of California, Irvine, California College Of Medicine
    MD • 1978


  • Oregon Health & Science UniversityPortland, OR
    Residency in General Surgery • 1979 - 1984


  • Sansum ClinicSanta Barbara, California
    Fellowship in Colon and Rectal Surgery


Hospital Affiliations

  • Providence Health & Services - Oregon

Languages Spoken  

  • English
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