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Maria Teresa A. De Guia, D.D.S., Inc.

General Practice Dentistry in Irwindale, CA · enumerated 2007 · authorized official Maria Teresa De Guia, President.

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

National Provider Identifier

1295863660

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Registry record

Entity type Organization (Type 2)
Legal business name Maria Teresa A. De Guia, D.D.S., Inc.
Practice address 15712 Arrow Hwy, Irwindale, CA, 91706
Phone (626) 337-2600
Fax (626) 337-2644
Enumeration date Feb 28, 2007
Last updated in NPPES Dec 19, 2008

Taxonomy & classification

1223G0001X General Practice Dentistry Dental Providers · License 53306 (CA) Primary

Authorized official

Name Maria Teresa De Guia
Title President
Phone (626) 337-2600

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 Maria Teresa A. De Guia, D.D.S., Inc.?
The NPI for Maria Teresa A. De Guia, D.D.S., Inc. is 1295863660, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Maria Teresa A. De Guia, D.D.S., Inc.?
NPPES lists Maria Teresa De Guia (President) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-12-19.