John Diaz
NPI 1366958217 · Addiction (Substance Use Disorder) Counselor · Torrance, CA
John Diaz is a Addiction (Substance Use Disorder) Counselor provider in Torrance, CA (NPI 1366958217).
Provider details
- NPI number
- 1366958217
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 5766-R (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
8 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
- 2017-12-14
- Last updated
- 2019-03-15
Frequently asked questions
- What is John Diaz's NPI number?
- John Diaz's National Provider Identifier (NPI) is 1366958217, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Diaz's specialty?
- John Diaz is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is John Diaz located?
- John Diaz's practice location on file with NPPES is 20300 S Vermont Ave, Torrance, CA 90502-1338.
- What is John Diaz's phone number?
- The practice phone number listed in the NPPES registry for John Diaz is (310) 787-1335.
- Is John Diaz's NPI active?
- Yes — John Diaz's NPI (1366958217) is active in the NPPES registry as of the last update on 2019-03-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.