Bruce Williams, PH.D.
NPI 1841492675 · Intellectual & Developmental Disabilities Psychologist · Pasadena, CA
Bruce Williams, PH.D. is a Intellectual & Developmental Disabilities Psychologist provider in Pasadena, CA (NPI 1841492675).
Provider details
- NPI number
- 1841492675
- Entity type
- Individual
- Primary specialty
- Intellectual & Developmental Disabilities PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY12785 (CA)
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
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
Mailing address
Registry dates
- Enumerated
- 2007-06-04
- Last updated
- 2007-07-08
Frequently asked questions
- What is Bruce Williams's NPI number?
- Bruce Williams's National Provider Identifier (NPI) is 1841492675, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bruce Williams's specialty?
- Bruce Williams is listed in the NPPES registry with a primary specialty of Intellectual & Developmental Disabilities Psychologist (Behavioral Health & Social Service Providers).
- Where is Bruce Williams located?
- Bruce Williams's practice location on file with NPPES is 897 S Los Robles Ave, Pasadena, CA 91106-3716.
- What is Bruce Williams's phone number?
- The practice phone number listed in the NPPES registry for Bruce Williams is (626) 792-6455.
- Is Bruce Williams's NPI active?
- Yes — Bruce Williams's NPI (1841492675) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.