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

Dr. Mari Sian Davies, PHD

Individual provider Clinical Neuropsychologist · NPI 1104198514

Dr. Mari Sian Davies, PHD is a Clinical Neuropsychologist in Marina del Rey, California. Licensed in California. Registered with an NPI since 2012.

Licensed in
CA
In the registry since
2012
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

4640 Admiralty Way Ste 500
Marina del Rey, CA 90292-6621
Phone: (650) 479-6609
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Neuropsychologist (primary) Taxonomy 103G00000X · Licence 24383PSY (CA)

Record details

NPI number1104198514
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedJanuary 31, 2012
Last updated in NPPESAugust 21, 2012

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