Dr. Crane Holmes is a board-certified naturopathic physician in Portland, Oregon, specializing in digestive health and men's health. His practice focuses on digestive issues including SIBO, IBS, and IBD, using naturopathic and holistic treatment approaches that address underlying causes. He blends conventional and natural therapies, drawing on lab and imaging interpretation to provide herbal, pharmaceutical, and nutritional guidance. Holmes is also the clinical director of the SIBO Testing Center.