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

Richard Anthony Welker, PHD

Individual provider Psychologist · NPI 1669829917

Richard Anthony Welker, PHD is a Psychologist in Napa, California. Licensed in California. Registered with an NPI since 2016.

Licensed in
CA
In the registry since
2016
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

2100 Napa Vallejo Hwy
Napa, CA 94558-6293
Phone: (707) 253-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence PSY18696 (CA)

Record details

NPI number1669829917
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedMay 17, 2016
Last updated in NPPESMay 17, 2016
Mailing address2100 Napa Vallejo Hwy., Napa, CA 94558-6293

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