GISELLE E ZAYER MSW, LCSW
NPI 1467825521
Counselor - Mental Health in Fontana, CA

Q: What is Giselle Zayer's NPI number?

The NPI number for Giselle Zayer is 1467825521. It was assigned to this individual provider in the NPPES registry on November 10, 2015.

Q: What is Giselle Zayer's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Q: When was this NPI record last updated?

The NPPES record for Giselle Zayer was last updated on July 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since November 10, 2015

15922 CATERPILLAR DR, FONTANA, CA 92336(909) 260-3866 Get Directions Write a Review

NPPES record last updated: July 24, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 23, 2017, Apr 14, 2017, Nov 10, 2015 (3 updates tracked since 2015).

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About Giselle E Zayer Msw, Lcsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GISELLE E ZAYER MSW, LCSW (NPI 1467825521) is an individual mental health provider in Fontana, California, licensed in California (LCSW107065) and active in the NPI registry since November 2015.

NPPES Registry Identity

NPI1467825521

Entity TypeIndividualFemale

Primary Taxonomy101YM0800X

Provider Legal NameGISELLE E ZAYERCredential: MSW, LCSW

Location Address15922 CATERPILLAR DRFontana, CA 92336-5589

Mailing Address12405 Royal Oaks DrRancho Cucamonga, CA 91739-8824 · (909) 260-3866 · Fax (951) 242-7733

Phone(909) 260-3866

Sole ProprietorYes

Enumeration DateNovember 10, 2015

Last NPPES UpdateJuly 24, 20253 updates tracked since enumeration

NPPES CertifiedJuly 24, 2025

✔ NPI 1467825521 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers

Taxonomy Code101YM0800X

License✔ Licensed in CA · LCSW107065

15922 CATERPILLAR DR, Fontana, CA 92336

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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Giselle Zayer's NPI number?

The NPI number for Giselle Zayer is 1467825521. It was assigned to this individual provider in the NPPES registry on November 10, 2015.

Where is Giselle Zayer located?

Giselle Zayer practices at 15922 Caterpillar Dr, Fontana, CA 92336. The listed phone number is (909) 260-3866.

What is Giselle Zayer's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Giselle Zayer was last updated on July 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.