IndividualActive
William Webster, LCSW
NPI 1457418766 · Clinical Social Worker · Novato, CA
William Webster, LCSW is a Clinical Social Worker provider in Novato, CA (NPI 1457418766).
Provider details
- NPI number
- 1457418766
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- 23875 (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
250 Bel Marin Keys Blvd Ste 212
Novato, CA 94949-5798
Phone: (415) 320-7039
Street-level locationGet directions
Mailing address
250 Bel Marin Keys Blvd Ste 212
Novato, CA 94949-5798
Registry dates
- Enumerated
- 2007-01-03
- Last updated
- 2023-08-28
- Certified
- 2023-08-28
Frequently asked questions
- What is William Webster's NPI number?
- William Webster's National Provider Identifier (NPI) is 1457418766, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Webster's specialty?
- William Webster is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is William Webster located?
- William Webster's practice location on file with NPPES is 250 Bel Marin Keys Blvd Ste 212, Novato, CA 94949-5798.
- What is William Webster's phone number?
- The practice phone number listed in the NPPES registry for William Webster is (415) 320-7039.
- Is William Webster's NPI active?
- Yes — William Webster's NPI (1457418766) is active in the NPPES registry as of the last update on 2023-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.