William Williams, C.A.T.C.
NPI 1639459001 · Addiction (Substance Use Disorder) Counselor · Fresno, CA
William Williams, C.A.T.C. is a Addiction (Substance Use Disorder) Counselor provider in Fresno, CA (NPI 1639459001).
Provider details
- NPI number
- 1639459001
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- C.A.T.C.
- Sex
- Male
- Sole proprietor
- No
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
14 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2011-08-17
- Last updated
- 2011-08-17
Frequently asked questions
- What is William Williams's NPI number?
- William Williams's National Provider Identifier (NPI) is 1639459001, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Williams's specialty?
- William Williams is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is William Williams located?
- William Williams's practice location on file with NPPES is 2772 Mlk Blvd., Fresno, CA 93706.
- What is William Williams's phone number?
- The practice phone number listed in the NPPES registry for William Williams is (559) 265-4800.
- Is William Williams's NPI active?
- Yes — William Williams's NPI (1639459001) is active in the NPPES registry as of the last update on 2011-08-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.