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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. Gregory Byrne:

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Specialties & Research

Dr. Gregory Byrne, MD is board certified in Emergency Medicine.

Education & Awards

Dr. Byrne graduated from University of Mississippi , Jackson.


Dr. Byrne has 41 hospital affiliations:

  • Harris Methodist H E B 
  • Saint John Hospital 


  • Spanish

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Additional Information
Dr. Gregory James Byrne MD is a male Emergency Medicine Specialist, has 33 years of experience and practices in Emergency Medicine.
Where does Dr. Gregory J. Byrne practice?
Dr. Gregory Byrne has 6 office locations.
Dr. Gregory Byrne practices Emergency Medicine near Richardson, TX.
Additional practice locations include: Dallas, TX and Southlake, TX.
See Richardson Emergency Physicians.