Registry data as of Aug 27, 2026

Thomas Armstrong, PHD

Clinical Psychologist · Walla Walla, WA

Thomas Armstrong, PHD is a clinical psychologist with a practice address in Walla Walla, Washington, and NPI 1659132587, issued on Jan 18, 2024. Check the license (Washington PY60966315, as entered in NPPES) with the Washington board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1659132587
Name
Thomas Armstrong
Credential
PHD
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
PY60966315 WA
Self-reported in NPPES; status is on the state search
Practice location
702 Lincoln St, Walla Walla, WA 99362
Phone
(509) 386-7500
Enumerated
Jan 18, 2024
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Thomas Armstrong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license PY60966315    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Find the Washington license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Clinical Psychologist providers in Washington

There are 1,550 clinical psychologist records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,550 in Washington → Every provider in Walla Walla →

Other clinical psychologist records in Washington

  1. Amy Aadland, PSY.D.Vancouver, WA1134378227
  2. Geneva Abiko, PSY.D.Bellevue, WA1891905303
  3. Aimee Acebedo, PH.D.Tacoma, WA1437342912
  4. Daisy Aceves, PHDSeattle, WA1144947441
  5. Chloe Adams, PHDLakewood, WA1407788789
  6. Diane Adams, PH.D.Renton, WA1922112937
  7. Julie Adams, PHDEdmonds, WA1700820644
  8. Reginald Adkisson, PHDBremerton, WA1063632834
  9. Chrystal Agnor, PH.D.Vancouver, WA1215241781
  10. David Agnor, PHDVancouver, WA1114971462

Common questions

What is Thomas Armstrong, PHD's NPI number?

Thomas Armstrong, PHD's National Provider Identifier (NPI) is 1659132587, issued on Jan 18, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Armstrong, PHD located?

The NPPES record lists a practice address at 702 Lincoln St, Walla Walla, WA, 99362. Phone: (509) 386-7500. Providers update this record themselves, so call before visiting.

How can I verify Thomas Armstrong, PHD's license?

NPPES lists Washington license number PY60966315, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.