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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. Mark Guelfguat:

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Specialties & Research

Dr. Mark Guelfguat, DO, MD is board certified in Diagnostic Radiology.

Education & Awards

Dr. Guelfguat graduated from New York Institute of Technology, Old Westbury.


Dr. Guelfguat has 1 hospital affiliations:

  • Staten Island University Hospital North 


  • Spanish
  • Russian
  • Hebrew
  • Italian
  • Yiddish

> > > > Dr. Mark Guelfguat, DO, MD

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Additional Information
Dr. Mark E Guelfguat DO and MD is a male Diagnostic Radiologist, has 11 years of experience and practices in Diagnostic Radiology.
Where does Dr. Mark E. Guelfguat practice?
Dr. Mark Guelfguat has 2 office locations.
Dr. Mark Guelfguat practices Diagnostic Radiology near Staten Island, NY.
See Staten Island Radiologists.