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Gary William Dufresne, DO

Emergency Medicine Physician in Fort Sam Houston, TX · enumerated 2005.

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

National Provider Identifier

1689664930

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Registry record

Entity type Individual (Type 1)
Name Gary William Dufresne
Credential DO
Sex Male
Practice address 3851 Roger Brooke Dr, Brooke Army Medical Center, Mche-Qd/ Credentials, Fort Sam Houston, TX, 78234
Phone (210) 916-2460
Enumeration date Oct 27, 2005
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 02002851A (IN) 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

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 is the NPI number for Gary Dufresne?
The National Provider Identifier (NPI) for Gary Dufresne is 1689664930, a Type 1 (individual) record in the CMS NPPES registry.
Where does Gary Dufresne practice?
The practice location on file with NPPES is in Fort Sam Houston, TX. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.