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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. Thomas Johnson:

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Specialties & Research

Dr. Thomas Johnson, MD is board certified in Diagnostic Radiology.

Education & Awards

Dr. Johnson graduated from Medical University of South Carolina, Charleston.


Dr. Johnson has 6 hospital affiliations:

  • Methodist Dallas Medical Center 
  • Methodist Medical Center 


  • Spanish

> > > > Dr. Thomas Johnson, MD

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Additional Information
Dr. Thomas Gary Johnson MD is a male Diagnostic Radiologist, has 38 years of experience and practices in Diagnostic Radiology.
Where does Dr. Thomas G. Johnson practice?
Dr. Thomas Johnson has 2 office locations.
Dr. Thomas Johnson practices Diagnostic Radiology near Richardson, TX.
Additional practice locations include: Ocala, FL.
See Richardson Radiologists.