Individual provider · Type 1 NPI

Eduardo Guillen, MD

Internal Medicine Physician · Oakland, CA

NPI number 1891315933 Active

Practice location

1411 E 31st St Fl 2
Oakland, CA 94602-1018

Call (510) 437-5039 Map

Fax (510) 535-7313

Specialties and licenses

TaxonomyCodeLicense
Hospitalist Physician 208M00000XA186129 (CA)
Internal Medicine Physician Primary 207R00000XA186129 (CA)

Internal Medicine Physician: A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medi…

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About NPI 1891315933

Eduardo Guillen, MD's National Provider Identifier is 1891315933, issued on Apr 18, 2020. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in Oakland, CA. The record was last updated on Sep 2, 2026.