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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Gregory M Guidry

Pharmacist in Leander, TX · enumerated 2009 · practices at Walgreen Co.

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

National Provider Identifier

1508194911

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Registry record

Entity type Individual (Type 1)
Name Mr. Gregory M Guidry
Sex Male
Practice address 905 Crystal Falls Pkwy, Leander, TX, 78641
Phone (512) 528-0970
Fax (512) 260-8466
Enumeration date Nov 23, 2009
Last updated in NPPES Nov 23, 2009

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 35189 (TX) Primary

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

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Gregory Guidry?
Gregory Guidry is registered in NPPES with the primary taxonomy of Pharmacist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-11-23.