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William Gillespie and Associates Inc.

Psychiatry Physician in Glendora, CA · enumerated 2014 · authorized official Julie Gillespie, Practice Manager.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1558771246

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Registry record

Entity type Organization (Type 2)
Legal business name William Gillespie and Associates Inc.
Other name <Unavail>
Practice address 510 S Grand Ave, Suite 200, Glendora, CA, 91741
Phone (626) 914-1980
Enumeration date May 2, 2014
Last updated in NPPES May 2, 2014

Taxonomy & classification

101Y00000X Counselor Behavioral Health & Social Service Providers Secondary
103T00000X Psychologist Behavioral Health & Social Service Providers Secondary
2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Julie Gillespie
Title Practice Manager
Phone (310) 922-3096

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for William Gillespie and Associates Inc.?
The NPI for William Gillespie and Associates Inc. is 1558771246, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for William Gillespie and Associates Inc.?
NPPES lists Julie Gillespie (Practice Manager) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-05-02.