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

Alexandra Castillo

Individual provider Speech-Language Assistant · NPI 1245791771

Alexandra Castillo is a Speech-Language Assistant in Ontario, California. Practices as a sole proprietor. Registered with an NPI since 2019.

In the registry since
2019

Practice location Address checks out

1500 S Haven Ave Ste 190
Ontario, CA 91761-2971
Phone: (909) 390-1313
Show map & directions

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

Specialties & licences

Speech-Language Assistant (primary) Taxonomy 2355S0801X

Record details

NPI number1245791771
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedMarch 27, 2019
Last updated in NPPESMarch 27, 2019
Mailing address1500 S Haven Ave Ste 190, Ontario, CA 91761-2971

Other providers in Ontario