3 Best Proctologists in Portland, OR

“Dr. Mark H. Whiteford graduated from the University of Maryland School of Medicine and completed his general surgery internship and residency at Thomas Jefferson University Hospital in Philadelphia, PA. He completed his colon and rectal surgery fellowship at the Barnes-Jewish Hospital in St. Louis, MO. Dr. Mark H. Whiteford is a fellow of the American College of Surgeons (FACS) and the American Society of Colon and Rectal Surgeons (FASCRS). He is a member of the Northwest Society of Colon and Rectal Surgeons and the Society of American Gastrointestinal and Endoscopic Surgeons. He is an expert in minimally invasive colorectal surgery, including laparoscopic surgery and transanal endoscopic microsurgery (TEM, TAMIS). Dr. Mark H. Whiteford is an Affiliate Professor of Surgery at OHSU. He has been invited to the American College of Surgeons, the Society of American Gastrointestinal and Endoscopic Surgeons, and the American Society of Colon and Rectal Surgeons as a teacher and lecturer. Dr. Mark H. Whiteford practices at The Oregon Clinic Center for Advanced Surgery East.”

“Dr. Rehan S. Ahmad received his undergraduate education at the University of Glasgow Medical School in Scotland. He completed his residency in general surgery at the University of Illinois College of Medicine at Chicago. Dr. Rehan S. Ahmad completed his residency in Colon and Rectal Surgery at the Allegheny Health Network Medical Education Consortium. He specializes in Colon/Rectal/Anal Cancer, Crohn’s/Ulcerative Colitis, Hemorrhoids, Diverticulitis, and Anorectal Disorders. Dr. Rehan S. Ahmad is a member of the American Board of Colon and Rectal Surgery in Colon & Rectal Surgery. He is affiliated with Legacy Good Samaritan Medical Center, Providence Portland Medical Center, and Providence St. Vincent Medical Center.”

“Dr. David O'Brien completed his MD at Emory University School of Medicine in Atlanta, GA. He completed his internship and residency training at the University of Cincinnati, Department of Surgery. Dr. David O'Brien completed clinical fellowship training in colorectal surgery at the Cleveland Clinic Foundation in Cleveland, OH. He has worked as the Chief Resident in the Department of Surgery at the University of Cincinnati. He is a fellow of the American Society of Colon and Rectal Surgeons and the American College of Surgeons. Dr. David O'Brien is a member of the Oregon Medical Association and the Northwest Society of Colon and Rectal Surgeons. He is on the Healthcare Economics Committee of the American Society of Colon and Rectal Surgeons. His practices also extend to 9155 SW Barnes Rd, Suite 735, Portland, OR.”