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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. Declan O'Riordan:

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Specialties & Research

Dr. Declan O'Riordan, MBBS, MD is board certified in Internal Medicine.

Education & Awards

Dr. O'Riordan graduated from University College Dublin.


Dr. O'Riordan has 6 hospital affiliations:

  • Lourdes Hospital 
  • UHS Binghamton General Hospital 


  • Yiddish
  • Spanish

> > > > Dr. Declan O'Riordan, MBBS, MD

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Additional Information
Dr. Declan Fiacra O'Riordan MBBS and MD is a male Internist, has 41 years of experience and practices in Internal Medicine.
Where does Dr. Declan F. O'Riordan practice?
Dr. Declan O'Riordan has 1 office location.
Dr. Declan O'Riordan practices Internal Medicine near Binghamton, NY.
See Binghamton Internists.