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14 years of experience
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. John Gian, MD is board certified in Internal Medicine.

Education & Awards

Dr. Gian graduated from New York Medical College, Valhalla.


Dr. Gian has 3 hospital affiliations:

  • St Elizabeth Medical Center 
  • Maimonides Medical Center 
  • Faxton-Saint Luke's Healthcare 

> > > > Dr. John Gian, MD

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Additional Information
Dr. John Gian MD is a male Internist, has 14 years of experience and practices in Internal Medicine.
Where does Dr. John Gian practice?
Dr. John Gian has 1 office location.
Dr. John Gian practices Internal Medicine near Brooklyn, NY.
See Brooklyn Internists.