Alejandra Mazariegos
NPI 1568977452 · Clinical Social Worker · Commerce, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alejandra Mazariegos is a Clinical Social Worker provider in Commerce, CA (NPI 1568977452).
Provider details
- NPI number
- 1568977452
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 96358 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
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
- 2017-12-13
- Last updated
- 2024-10-15
- Certified
- 2023-11-20
Frequently asked questions
- What is Alejandra Mazariegos's NPI number?
- Alejandra Mazariegos's National Provider Identifier (NPI) is 1568977452, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alejandra Mazariegos's specialty?
- Alejandra Mazariegos is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Alejandra Mazariegos located?
- Alejandra Mazariegos's practice location on file with NPPES is 5400 E Olympic Blvd Fl Bvd1, Commerce, CA 90022-5147.
- What is Alejandra Mazariegos's phone number?
- The practice phone number listed in the NPPES registry for Alejandra Mazariegos is (323) 869-9255.
- Does Alejandra Mazariegos accept Medicare?
- Alejandra Mazariegos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alejandra Mazariegos's NPI active?
- Yes — Alejandra Mazariegos's NPI (1568977452) is active in the NPPES registry as of the last update on 2024-10-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.