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

Individual provider Clinical Psychologist · NPI 1609926823

Margaret Thayer, PHD is a Clinical Psychologist in Walnut Creek, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
What do these letters mean?
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

1600 S Main St Ste 111
Walnut Creek, CA 94596-5320
Phone: (925) 855-0459
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSY14839 (CA)

Record details

NPI number1609926823
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedJanuary 11, 2007
Last updated in NPPESSeptember 19, 2016
Mailing address1600 S Main St Ste 111, Walnut Creek, CA 94596-5320

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