Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mario Castaneda Martinez, MSW

Individual provider Clinical Social Worker · NPI 1447928536

Mario Castaneda Martinez, MSW is a Clinical Social Worker in Los Angeles, California. Licensed in California. Registered with an NPI since 2021.

Licensed in
CA
In the registry since
2021
Specialties on file
2
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.

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Practice location Address checks out

5427 Whittier Blvd
Los Angeles, CA 90022-4101
Phone: (323) 869-5450
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence LCSW137982 (CA)
Mental Health Counselor Taxonomy 101YM0800X · Licence 116539 (CA)

Record details

NPI number1447928536
Entity typeIndividual (Type 1)
GenderMale
Credentials MSW
Sole proprietorNo
NPI enumeratedSeptember 2, 2021
Last updated in NPPESApril 20, 2026
Certification dateApril 20, 2026

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