Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Diana Marquardt, MD

Individual provider Internal Medicine Physician · NPI 1114909454

Diana Marquardt, MD is an Internal Medicine Physician in San Diego, California. Licensed in California. Registered with an NPI since 2005.

Licensed in
CA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4290 Polk Ave
San Diego, CA 92105-1524
Phone: (619) 563-0507
Fax: (619) 563-0015
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MDG44220 (CA)

Record details

NPI number1114909454
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 14, 2005
Last updated in NPPESJuly 13, 2026

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