William Ashby
NPI 1063993400 · Clinical Social Worker · Van Nuys, CA
William Ashby is a Clinical Social Worker provider in Van Nuys, CA (NPI 1063993400).
Provider details
- NPI number
- 1063993400
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 138255 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
7 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
- 2018-08-23
- Last updated
- 2026-04-28
- Certified
- 2026-04-28
Frequently asked questions
- What is William Ashby's NPI number?
- William Ashby's National Provider Identifier (NPI) is 1063993400, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Ashby's specialty?
- William Ashby is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is William Ashby located?
- William Ashby's practice location on file with NPPES is 16650 Sherman Way, Van Nuys, CA 91406-3782.
- What is William Ashby's phone number?
- The practice phone number listed in the NPPES registry for William Ashby is (818) 901-4836.
- Is William Ashby's NPI active?
- Yes — William Ashby's NPI (1063993400) is active in the NPPES registry as of the last update on 2026-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.