Individual provider · Type 1 NPI

Diana Marquardt, MD

Internal Medicine Physician · San Diego, CA

NPI number 1114909454 Active

Practice location

4290 Polk Ave
San Diego, CA 92105-1524

Call (619) 563-0507 Map

Fax (619) 563-0015

Specialties and licenses

TaxonomyCodeLicense
Internal Medicine Physician Primary 207R00000XMDG44220 (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 1114909454

Diana Marquardt, MD's National Provider Identifier is 1114909454, issued on Nov 14, 2005. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in San Diego, CA. The record was last updated on Jul 13, 2026.