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

MS. Guillermina Hall

Individual provider Social Worker · NPI 1811321664

MS. Guillermina Hall is a Social Worker in Ontario, California. Registered with an NPI since 2013.

In the registry since
2013

Practice location Address checks out

317 W F St
Ontario, CA 91762-3205
Phone: (909) 986-7111
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 number1811321664
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedAugust 29, 2013
Last updated in NPPESAugust 29, 2013
Mailing address10802 Wilson Ave, Alta Loma, CA 91737-2437

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