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

Mr. Efren Castro

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1235319922

Mr. Efren Castro is an Addiction (Substance Use Disorder) Counselor in Pomona, California. Registered with an NPI since 2007.

In the registry since
2007

Practice location Address checks out

558 N Towne Ave
Pomona, CA 91767-4826
Phone: (909) 622-2273
Show map & directions

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

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X

Record details

NPI number1235319922
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedNovember 9, 2007
Last updated in NPPESNovember 9, 2007
Mailing address558 N Towne Ave, Pomona, CA 91767-4826

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