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

Alexandra Matthews, PHD

Individual provider Clinical Neuropsychologist · NPI 1679926786

Alexandra Matthews, PHD is a Clinical Neuropsychologist in Mill Valley, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2016
Specialties on file
2
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

275 Miller Ave Ste 203
Mill Valley, CA 94941-2851
Phone: (415) 388-0800
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cognitive & Behavioral Psychologist (primary) Taxonomy 103TB0200X · Licence PSY16219 (CA)
Clinical Neuropsychologist Taxonomy 103G00000X · Licence PSY16219 (CA)

Record details

NPI number1679926786
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedJuly 14, 2016
Last updated in NPPESJuly 14, 2016
Mailing address275 Miller Ave Ste 203, Mill Valley, CA 94941-2851

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