Estel Mcmaster
NPI 1043040876 · Addiction (Substance Use Disorder) Counselor · Downey, CA
Estel Mcmaster is a Addiction (Substance Use Disorder) Counselor provider in Downey, CA (NPI 1043040876).
Provider details
- NPI number
- 1043040876
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 13775 (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
1 yr 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
- 2024-08-06
- Last updated
- 2025-01-24
- Certified
- 2025-01-24
Frequently asked questions
- What is Estel Mcmaster's NPI number?
- Estel Mcmaster's National Provider Identifier (NPI) is 1043040876, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Estel Mcmaster's specialty?
- Estel Mcmaster is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Estel Mcmaster located?
- Estel Mcmaster's practice location on file with NPPES is 11501 Dolan Ave, Downey, CA 90241-4921.
- What is Estel Mcmaster's phone number?
- The practice phone number listed in the NPPES registry for Estel Mcmaster is (562) 923-7894.
- Is Estel Mcmaster's NPI active?
- Yes — Estel Mcmaster's NPI (1043040876) is active in the NPPES registry as of the last update on 2025-01-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.