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

Dr. Thomas Armstrong, PHD

Individual provider Clinical Psychologist · NPI 1659132587

Dr. Thomas Armstrong, PHD is a Clinical Psychologist in Walla Walla, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2024
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

702 Lincoln St
Walla Walla, WA 99362-3234
Phone: (509) 386-7500
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PY60966315 (WA)

Record details

NPI number1659132587
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedJanuary 18, 2024
Last updated in NPPESJanuary 18, 2024
Certification dateJanuary 18, 2024
Mailing address702 Lincoln St, Walla Walla, WA 99362-3234

Other providers in Walla Walla