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. Mark Armstrong, MD is board certified in Diagnostic Radiology and Neuroradiology.

Education & Awards

Dr. Armstrong graduated from Albany Medical College.


Dr. Armstrong has 2 hospital affiliations:

  • South Nassau Communities Hospital 
  • Montefiore New Rochelle Hospital 


  • Russian
  • Spanish
  • Chinese

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Additional Information
Dr. Mark R Armstrong MD is a male Diagnostic Radiologist, has 26 years of experience and practices in Diagnostic Radiology and Neuroradiology.
Where does Dr. Mark R. Armstrong practice?
Dr. Mark Armstrong has 1 office location.
Dr. Mark Armstrong practices Diagnostic Radiology and Neuroradiology near New Rochelle, NY.
See New Rochelle Radiologists.