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

Individual provider Internal Medicine Physician · NPI 1417276254

Alexander Marson, MD, PHD is an Internal Medicine Physician in San Francisco, California. Licensed in California. Registered with an NPI since 2010.

Licensed in
CA
In the registry since
2010
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

400 Parnassus Ave
San Francisco, CA 94143-0001
Phone: (415) 353-2326
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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 A121580 (CA)

Record details

NPI number1417276254
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedMay 19, 2010
Last updated in NPPESMarch 25, 2015

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