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

Individual provider Medical Oncology Physician · NPI 1174225379

Dr. Margaret Guo, MD, PHD is a Medical Oncology Physician in San Francisco, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2023
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

505 Parnassus Ave # M1480
San Francisco, CA 94143-2204
Phone: (415) 476-1000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence 200118 (CA)

Record details

NPI number1174225379
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD , PHD
Sole proprietorYes
NPI enumeratedMarch 20, 2023
Last updated in NPPESJuly 17, 2026
Certification dateJuly 17, 2026

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