Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Kirsten Piening Marcus, MD

Individual provider Internal Medicine Physician · NPI 1992995435

Dr. Kirsten Piening Marcus, MD is an Internal Medicine Physician in San Francisco, California. Licensed in California and Connecticut. Registered with an NPI since 2007.

Licensed in
CA, CT
In the registry since
2007
Specialties on file
2
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

840 Irving St
San Francisco, CA 94122-2311
Phone: (415) 590-6140
Fax: (415) 291-0489
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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 127636 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 045703 (CT)

Record details

NPI number1992995435
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 31, 2007
Last updated in NPPESFebruary 5, 2018

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