Antonia Contreras
NPI 1841401114 · Addiction (Substance Use Disorder) Counselor · Newark, CA
Antonia Contreras is a Addiction (Substance Use Disorder) Counselor provider in Newark, CA (NPI 1841401114).
Provider details
- NPI number
- 1841401114
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- 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
19 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
- 2007-05-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is Antonia Contreras's NPI number?
- Antonia Contreras's National Provider Identifier (NPI) is 1841401114, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Antonia Contreras's specialty?
- Antonia Contreras is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Antonia Contreras located?
- Antonia Contreras's practice location on file with NPPES is 6330 Thornton Ave, Newark, CA 94560-3734.
- What is Antonia Contreras's phone number?
- The practice phone number listed in the NPPES registry for Antonia Contreras is (510) 792-4357.
- Is Antonia Contreras's NPI active?
- Yes — Antonia Contreras's NPI (1841401114) 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.