Individual provider · Type 1 NPI

Timothy M. Sowerby, MD

Gastroenterology Physician · Petaluma, CA

NPI number 1063475952 Active

Practice location

3900 Lakeville Hwy
Petaluma, CA 94954-5698

Call (707) 765-3900 Map

Specialties and licenses

TaxonomyCodeLicense
Gastroenterology Physician 207RG0100XA050116 (CA)
Gastroenterology Physician Primary 207RG0100XA50116 (CA)

Gastroenterology Physician: An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

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About NPI 1063475952

Timothy M. Sowerby, MD's National Provider Identifier is 1063475952, issued on Apr 11, 2006. The primary taxonomy on file is Gastroenterology Physician (207RG0100X), and the practice location is in Petaluma, CA. The record was last updated on Jan 15, 2026.