Colorectal Services

Care Providers

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Anita Afzali M.D., M.P.H.

Dr. Afzali is a gastroenterologist practicing at Harborview Medical Center. She specializes in inflammatory bowel disease (IBD) and is the director of the…
Specialties and Expertise: Gastroenterology

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Currently not seeing new patients.

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Anthony L. Back M.D.

Anthony Back M.D., is professor at the University of Washington and Fred Hutchinson Cancer Research Center and codirects the UW Center for Excellence in…
Specialties and Expertise: Medical Oncology

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Teri Brentnall M.D.

Dr. Brentnall is a clinical gastroenterologist who also is a cancer researcher. In the clinical realm, she specializes in caring for patients that have an…
Specialties and Expertise: Gastroenterology

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Elena Gabriela Chiorean M.D.

Dr. Chiorean specializes in treating patients with colorectal, gastrointestinal, hepatobiliary and pancreatic cancers.
Specialties and Expertise: Medical Oncology
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Andrew L. Coveler M.D.

Dr. Coveler is UW Assistant Professor, Medical Oncology Division.
Specialties and Expertise: Medical Oncology
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Mark D. Derleth M.D.

Dr. Derleth is a board-certified physician in Gastroenterology and Internal Medicine. He sees patients in clinic and performs procedures at both the UW…
Specialties and Expertise: Gastroenterology

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