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Ralph Williams, PH.D.
NPI 1336225374 · Forensic Psychologist · Sylmar, CA
Ralph Williams, PH.D. is a Forensic Psychologist provider in Sylmar, CA (NPI 1336225374).
Provider details
- NPI number
- 1336225374
- Entity type
- Individual
- Primary specialty
- Forensic PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- PSY10419 (CA)
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
16350 Filbert St
Department of Mental Health
Sylmar, CA 91342-1002
Phone: (818) 364-2152
Street-level locationGet directions
Mailing address
16350 Filbert St
Sylmar, CA 91342-1002
Registry dates
- Enumerated
- 2006-10-31
- Last updated
- 2007-07-08
Frequently asked questions
- What is Ralph Williams's NPI number?
- Ralph Williams's National Provider Identifier (NPI) is 1336225374, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ralph Williams's specialty?
- Ralph Williams is listed in the NPPES registry with a primary specialty of Forensic Psychologist (Behavioral Health & Social Service Providers).
- Where is Ralph Williams located?
- Ralph Williams's practice location on file with NPPES is 16350 Filbert St, Sylmar, CA 91342-1002.
- What is Ralph Williams's phone number?
- The practice phone number listed in the NPPES registry for Ralph Williams is (818) 364-2152.
- Is Ralph Williams's NPI active?
- Yes — Ralph Williams's NPI (1336225374) 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.