Internal Medicine, Gastroenterology in PORTLAND, OR
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Douglas A Shumaker, MD, is a physician specializing in Internal Medicine and Gastroenterology based in Portland, OR.
Generated from public NPI Registry data only. Not independently verified — confirm credentials directly with the practice.
Dr. DOUGLAS A SHUMAKER specializes in Internal Medicine, Gastroenterology.
Dr. DOUGLAS A SHUMAKER practices in PORTLAND, OR.
Dr. DOUGLAS A SHUMAKER's NPI number is 1225034937.