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

Efren Monterroso Jr.

Individual provider Social Worker · NPI 1982002044

Efren Monterroso Jr. is a Social Worker in Sylmar, California. Registered with an NPI since 2014.

In the registry since
2014

Practice location Address checks out

11300 Foothill Blvd Unit 78
Sylmar, CA 91342-6722
Phone: (818) 899-4954
Show map & directions

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

Specialties & licences

Social Worker (primary) Taxonomy 104100000X

Record details

NPI number1982002044
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedDecember 5, 2014
Last updated in NPPESDecember 5, 2014
Mailing address11300 Foothill Blvd Unit 78, Sylmar, CA 91342-6722

Other providers in Sylmar