Dolores Mast, LCSW 63286
NPI 1992987242 · Clinical Social Worker · Fontana, CA
Dolores Mast, LCSW 63286 is a Clinical Social Worker provider in Fontana, CA (NPI 1992987242).
Provider details
- NPI number
- 1992987242
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW 63286
- Sex
- Female
- Sole proprietor
- Yes
- License
- LCSW 63286 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
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
18 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
- 2007-11-28
- Last updated
- 2021-04-28
- Certified
- 2021-04-01
Frequently asked questions
- What is Dolores Mast's NPI number?
- Dolores Mast's National Provider Identifier (NPI) is 1992987242, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dolores Mast's specialty?
- Dolores Mast is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Dolores Mast located?
- Dolores Mast's practice location on file with NPPES is 17830 Arrow Blvd, Fontana, CA 92335-4037.
- What is Dolores Mast's phone number?
- The practice phone number listed in the NPPES registry for Dolores Mast is (909) 356-6451.
- Is Dolores Mast's NPI active?
- Yes — Dolores Mast's NPI (1992987242) is active in the NPPES registry as of the last update on 2021-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.