Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John C Guidry, DDS, MS

Q: What is the NPI number for John Guidry?

The National Provider Identifier (NPI) for John Guidry is 1588870471, a Type 1 (individual) record in the CMS NPPES registry.

Dentist in San Antonio, TX · enumerated 2007.

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

National Provider Identifier

1588870471

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Registry record

Entity type Individual (Type 1)

Name Dr. John C Guidry

Credential DDS, MS

Sex Male

Practice address 1102 Barclay St, San Antonio, TX, 78207

Phone (210) 233-7000

Fax (210) 434-1704

Enumeration date May 15, 2007

Last updated in NPPES Dec 8, 2014

Taxonomy & licenses

122300000X Dentist Dental Providers · License 20775 (TX) Primary

1223X0008X Oral and Maxillofacial Radiology Dentistry Dental Providers · License 20775 (TX) Secondary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does John Guidry practice?

The practice location on file with NPPES is in San Antonio, TX. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for John Guidry?

The National Provider Identifier (NPI) for John Guidry is 1588870471, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-12-08.