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Gregory Williams, PSY.D.
NPI 1326139361 · Clinical Psychologist · Olympia, WA
Gregory Williams, PSY.D. is a Clinical Psychologist provider in Olympia, WA (NPI 1326139361).
Provider details
- NPI number
- 1326139361
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Male
- Sole proprietor
- No
- License
- PY00002410 (WA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
2118 Caton Way Sw
Olympia, WA 98502
Phone: (360) 754-4662
Fax: (369) 352-3289
Street-level locationGet directions
Mailing address
2118 Caton Way Sw
Olympia, WA 98502
Registry dates
- Enumerated
- 2006-09-27
- Last updated
- 2008-10-31
Frequently asked questions
- What is Gregory Williams's NPI number?
- Gregory Williams's National Provider Identifier (NPI) is 1326139361, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Williams's specialty?
- Gregory Williams is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Gregory Williams located?
- Gregory Williams's practice location on file with NPPES is 2118 Caton Way Sw, Olympia, WA 98502.
- What is Gregory Williams's phone number?
- The practice phone number listed in the NPPES registry for Gregory Williams is (360) 754-4662.
- Is Gregory Williams's NPI active?
- Yes — Gregory Williams's NPI (1326139361) is active in the NPPES registry as of the last update on 2008-10-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.