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

Barry Robert Olson, PHD

Individual provider Clinical Psychologist · NPI 1639261134

Barry Robert Olson, PHD is a Clinical Psychologist in Modesto, 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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

3425 Coffee Rd Ste 2A
Modesto, CA 95355-1582
Phone: (209) 524-9401
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSY 7365 (CA)

Record details

NPI number1639261134
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedSeptember 29, 2006
Last updated in NPPESSeptember 3, 2013
Mailing address600 Coffee Rd, Modesto, CA 95355-4201

Other providers in Modesto