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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).

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Specialties & Research

Dr. Stephen Armstrong, MD is board certified in Diagnostic Radiology.

Education & Awards

Dr. Armstrong graduated from The University of Texas at Houston.


Dr. Armstrong has 17 hospital affiliations:

  • East Texas Medical Center-Tyler 
  • East Texas Medical Center-Carthage 


  • Spanish

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Additional Information
Dr. Stephen Armstrong MD is a male Diagnostic Radiologist, has 26 years of experience and practices in Diagnostic Radiology.
Where does Dr. Stephen Armstrong practice?
Dr. Stephen Armstrong has 3 office locations.
Dr. Stephen Armstrong practices Diagnostic Radiology near Tyler, TX.
See Tyler Radiologists.