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

Cassandra Castellano Becerra

Individual provider Case Manager/Care Coordinator · NPI 1033692694

Cassandra Castellano Becerra is a Case Manager/Care Coordinator in Ontario, California. Practices as a sole proprietor and works from 2 locations. Registered with an NPI since 2018.

In the registry since
2018
Specialties on file
2

Practice location Address checks out

1556 S Sultana Ave
Ontario, CA 91761-4238
Phone: (909) 418-6923
Show map & directions

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

Additional practice locations (1)

  • 801 E Chapman Ave Ste 203, Fullerton, CA 92831-3846 — (714) 680-9000

Specialties & licences

Student in an Organized Health Care Education/Training Program (primary) Taxonomy 390200000X
Case Manager/Care Coordinator Taxonomy 171M00000X

Record details

NPI number1033692694
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedSeptember 10, 2018
Last updated in NPPESJuly 23, 2025
Certification dateJuly 23, 2025

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