Mario Castaneda Martinez, MSW
NPI 1447928536 · Clinical Social Worker · Los Angeles, CA
Mario Castaneda Martinez, MSW is a Clinical Social Worker provider in Los Angeles, CA (NPI 1447928536).
Provider details
- NPI number
- 1447928536
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Male
- Sole proprietor
- No
- License
- LCSW137982 (CA)
Specialties & taxonomies
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
4 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
- 2021-09-02
- Last updated
- 2026-04-20
- Certified
- 2026-04-20
Frequently asked questions
- What is Mario Castaneda Martinez's NPI number?
- Mario Castaneda Martinez's National Provider Identifier (NPI) is 1447928536, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mario Castaneda Martinez's specialty?
- Mario Castaneda Martinez is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mario Castaneda Martinez located?
- Mario Castaneda Martinez's practice location on file with NPPES is 5427 Whittier Blvd, Los Angeles, CA 90022-4101.
- What is Mario Castaneda Martinez's phone number?
- The practice phone number listed in the NPPES registry for Mario Castaneda Martinez is (323) 869-5450.
- Is Mario Castaneda Martinez's NPI active?
- Yes — Mario Castaneda Martinez's NPI (1447928536) is active in the NPPES registry as of the last update on 2026-04-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.