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

Prof. Margaret Ingrid Wallhagen, RN, GNP, PHD

Individual provider Gerontology Nurse Practitioner · NPI 1245331222

Prof. Margaret Ingrid Wallhagen, RN, GNP, PHD is a Gerontology Nurse Practitioner in San Francisco, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
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

2 Koret Way N631
San Francisco, CA 94143-0610
Phone: (415) 476-4965
Fax: (415) 476-8899
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gerontology Nurse Practitioner (primary) Taxonomy 363LG0600X · Licence 181577 (CA)

Record details

NPI number1245331222
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , GNP , PHD
Sole proprietorNo
NPI enumeratedSeptember 25, 2006
Last updated in NPPESJuly 8, 2007

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