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Portland
Dr. David P. O'Brien, IV
About

About Dr. O'Brien
Dr. O'Brien

Photo of Dr. David P. O'Brien, MD source

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Dr. David O'Brien graduated from Emory University School of Medicine in 1997 before completing a residency in General Surgery at University of Cincinnati College of Medicine in Cincinnati, OH from 1998 to 2004. He then completed a fellowship in Colorectal Surgery at Cleveland Clinic Foundation from 2004 to 2005.

Dr. O'Brien has one office in Oregon where he specializes in Colorectal Surgery and Surgical Oncology. Learn more.

Dr. O'Brien works with sixteen doctors including Dr. Jonathan Chun and Dr. Chet Hammill.

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Specialties

  • Colorectal Surgery

    Colorectal surgeons like Dr. O'Brien specialize in the surgical and non-surgical care for structures of the lower digestive system, including the intestines, colon and rectum. Dr. O'Brien may treat conditions such as colon and rectal cancer, polyps, fecal incontinence, ulcerative colitis, inflammatory bowel disease and hemorrhoids. In the past, colorectal surgeons were commonly known as "proctologists."

  • Surgical Oncology

    Surgical oncologists offer surgical treatment for patients suffering from a variety of cancers. The goal of a surgical oncologist is to stop the advancement of the disease through surgical intervention, sending the patient into remission. Dr. O'Brien may offer a range of surgical treatment types including preventive surgery, curative surgery, diagnostic surgery, debulking surgery, palliative surgery, restorative surgery, and more. Dr.  may offer surgery in conjunction with other treatments like radiation therapy, chemotherapy or hormone therapy.

Conditions Treated 

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

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

Residency

  • University of Cincinnati College of Medicine • Cincinnati, OH
    Residency in General Surgery • 1998 - 2004

Fellowship

  • Cleveland Clinic Foundation • Cleveland, OH
    Fellowship in Colorectal Surgery • 2004 - 2005

Hospital Affiliations

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

Languages Spoken  

  • English
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