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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. Gary Dufresne:

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Specialties & Research

Dr. Gary Dufresne, DO is board certified in Emergency Medicine.


Education & Awards


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Additional Information
Dr. Gary William Dufresne DO is a male Emergency Medicine Specialist, has 8 years of experience and practices in Emergency Medicine.
Where does Dr. Gary W. Dufresne practice?
Dr. Gary Dufresne has 1 office location.
Dr. Gary Dufresne practices Emergency Medicine near San Antonio, TX.
See San Antonio Emergency Physicians.