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

Robert A Aitchison, PHD

Individual provider Psychologist · NPI 1700850047

Robert A Aitchison, PHD is a Psychologist in Yountville, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
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

220 California Dr
Yountville, CA 94599-1412
Phone: (707) 944-4716
Fax: (707) 948-2530
Show map & directions

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

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence PSY 4819 (CA)

Record details

NPI number1700850047
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedFebruary 14, 2006
Last updated in NPPESJuly 13, 2026

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