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Gregory Alan Ennis, M.D., P.A.

Family Medicine Physician in Allen, TX · enumerated 2007 · authorized official Shannon Norwood, Office Manager.

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

National Provider Identifier

1124140991

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Registry record

Entity type Organization (Type 2)
Legal business name Gregory Alan Ennis, M.D., P.A.
Practice address 1101 Raintree Cir, Suite 200, Allen, TX, 75013
Phone (214) 644-0980
Fax (214) 644-0985
Enumeration date Apr 4, 2007
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License K5292 (TX) Primary

Authorized official

Name Shannon Norwood
Title Office Manager
Phone (214) 644-0980

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 Gregory Alan Ennis, M.D., P.A.?
Gregory Alan Ennis, M.D., P.A. is registered in NPPES as a Family Medicine Physician (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 2020-08-22.