Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory Norman Messner, D.O.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Plano, TX · enumerated 2006.

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

National Provider Identifier

1376572867

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Registry record

Entity type Individual (Type 1)

Name Gregory Norman Messner

Credential D.O.

Sex Male

Practice address 4708 Dexter Dr Ste 350, Plano, TX, 75093

Phone (469) 750-8041

Fax (469) 750-3057

Enumeration date Jun 30, 2006

Last updated in NPPES Dec 22, 2025

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License K5159 (TX) Secondary

2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians · License K5159 (TX) Secondary

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License K5159 (TX) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
8U9393	Other	TX	BCBS
149924601	Medicaid	TX	-
P00715572	Other	TX	RR MEDICARE PIN
K5159	Other	TX	MEDICAL LICENSE

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 Gregory Messner practice?

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

What is the NPI number for Gregory Messner?

The National Provider Identifier (NPI) for Gregory Messner is 1376572867, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-22.