Individual provider · Type 1 NPI

Chelsea Joy Thomsen, MD, M.S.P.H

Internal Medicine Physician · San Francisco, CA

NPI number 1003227927 Active

Practice location

2 W Portal Ave
San Francisco, CA 94127-1304

Call (415) 291-0480 Map

Fax (415) 252-7176

Mailing address

1 Embarcadero Ctr Ste 1900
San Francisco, CA 94111-3723

Other practice locations

  • 1998 Market St, San Francisco, CA 94102-6228 · (415) 790-6040

Specialties and licenses

TaxonomyCodeLicense
Internal Medicine Physician 207R00000X50576 (AZ)
Internal Medicine Physician Primary 207R00000XA170520 (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 1003227927

Chelsea Joy Thomsen, MD, M.S.P.H's National Provider Identifier is 1003227927, issued on May 13, 2014. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in San Francisco, CA. The record was last updated on Mar 14, 2025.