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Grey Canyon Family Medicine PA

Family Medicine Physician in San Antonio, TX · enumerated 2006 · authorized official Brian Macgillivray, Owner.

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

National Provider Identifier

1043391121

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Registry record

Entity type Organization (Type 2)
Legal business name Grey Canyon Family Medicine PA
Practice address 20658 Stone Oak Pkwy, Ste 108, San Antonio, TX, 78258
Phone (210) 615-9990
Fax (210) 615-9909
Enumeration date Oct 17, 2006
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License M3304 (TX) Primary

Authorized official

Name Brian Macgillivray
Title Owner
Phone (210) 615-9990

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 Grey Canyon Family Medicine PA?
Grey Canyon Family Medicine PA 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.