PATRICIA JOANNE WILLIAMS MSW
NPI 1639706385
Counselor - Addiction (Substance Use Disorder) in Ontario, CA

Active since March 24, 2020

NPPES record last updated: April 1, 2020. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Apr 1, 2020, Mar 24, 2020 (2 updates tracked since 2020).

About Patricia Joanne Williams Msw NPPES

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

PATRICIA JOANNE WILLIAMS MSW (NPI 1639706385) is an individual addiction (substance use disorder) provider in Ontario, California, licensed in California (10534) and active in the NPI registry since March 2020.

NPPES Registry Identity

NPI1639706385
Entity TypeIndividualFemale
Primary Taxonomy101YA0400X
Provider Legal NamePATRICIA JOANNE WILLIAMSCredential: MSW
Location Address125 W F STOntario, CA 91762-3201
Mailing Address125 W F StOntario, CA 91762-3201 · (909) 986-4550
Sole ProprietorNo
Enumeration DateMarch 24, 2020
Last NPPES UpdateApril 1, 20202 updates tracked since enumeration
NPPES CertifiedApril 1, 2020
NPI 1639706385 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
License Licensed in CA · 10534
125 W F ST, Ontario, CA 91762

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Counselor (Addiction (Substance Use Disorder))
125 W F ST
ONTARIO, CA 91762
Clinic/Center (Methadone)
125 W F ST, SUITE 101
ONTARIO, CA 91762
Counselor (Addiction (Substance Use Disorder))
125 W F ST, STE 101
ONTARIO, CA 91762
Counselor (Addiction (Substance Use Disorder))
125 W F ST
ONTARIO, CA 91762
Counselor (Addiction (Substance Use Disorder))
125 W F ST
ONTARIO, CA 91762
Counselor (Addiction (Substance Use Disorder))
125 W F ST
ONTARIO, CA 91762
Counselor (Addiction (Substance Use Disorder))
125 W F ST
ONTARIO, CA 91762
Counselor (Addiction (Substance Use Disorder))
125 W F ST
ONTARIO, CA 91762

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 Patricia Williams's NPI number?

The NPI number for Patricia Williams is 1639706385. It was assigned to this individual provider in the NPPES registry on March 24, 2020.

Where is Patricia Williams located?

Patricia Williams practices at 125 W F St, Ontario, CA 91762. The listed phone number is (909) 986-4550.

What is Patricia Williams's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Patricia Williams was last updated on April 1, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.