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

Katie Ann Sy

Individual provider Marriage & Family Therapist · NPI 1992657340

Katie Ann Sy is a Marriage & Family Therapist in Rancho Cucamonga, California. Licensed in California. Registered with an NPI since 2026.

Licensed in
CA
In the registry since
2026

Practice location PO Box

The provider listed a PO Box rather than a street location, so this is not a walk-in address.

PO Box 8813
Rancho Cucamonga, CA 91701-0813
Phone: (323) 917-2322
Show map & directions

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

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X · Licence 156155 (CA)

Record details

NPI number1992657340
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedFebruary 10, 2026
Last updated in NPPESFebruary 10, 2026
Certification dateFebruary 10, 2026

Other providers in Rancho Cucamonga