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G.S.Castillo, D.D.S. A Professional Corporation

Dentist in Hemet, CA · enumerated 2007 · authorized official Guillermo Castillo, Doctor.

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

National Provider Identifier

1689866709

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Registry record

Entity type Organization (Type 2)
Legal business name G.S.Castillo, D.D.S. A Professional Corporation
Practice address 1001 E Latham Ave, D, Hemet, CA, 92543
Phone (951) 652-1312
Fax (951) 652-0771
Enumeration date Aug 13, 2007
Last updated in NPPES Aug 13, 2007

Taxonomy & classification

122300000X Dentist Dental Providers · License 50896 (CA) Primary

Authorized official

Name Guillermo Castillo
Title Doctor
Phone (951) 652-1312

Other identifiers

Identifier Type State Issuer
G94099-01 Medicaid CA -

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 type of organization is G.S.Castillo, D.D.S. A Professional Corporation?
G.S.Castillo, D.D.S. A Professional Corporation is registered in NPPES as a Dentist (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-08-13.