Thomas Armstrong, PHD
NPI 1659132587 · Clinical Psychologist · Walla Walla, WA
Thomas Armstrong, PHD is a Clinical Psychologist provider in Walla Walla, WA (NPI 1659132587).
Provider details
- NPI number
- 1659132587
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- Yes
- License
- PY60966315 (WA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2024-01-18
- Last updated
- 2024-01-18
- Certified
- 2024-01-18
Frequently asked questions
- What is Thomas Armstrong's NPI number?
- Thomas Armstrong's National Provider Identifier (NPI) is 1659132587, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Armstrong's specialty?
- Thomas Armstrong is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Thomas Armstrong located?
- Thomas Armstrong's practice location on file with NPPES is 702 Lincoln St, Walla Walla, WA 99362-3234.
- What is Thomas Armstrong's phone number?
- The practice phone number listed in the NPPES registry for Thomas Armstrong is (509) 386-7500.
- Is Thomas Armstrong's NPI active?
- Yes — Thomas Armstrong's NPI (1659132587) is active in the NPPES registry as of the last update on 2024-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.