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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).

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Education & Awards

Dr. Sullivan graduated from Washington University at St. Louis, Saint Louis.


Dr. Sullivan has 1 hospital affiliations:

  • Massena Memorial Hospital 

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Additional Information
Dr. Roger Sullivan MD is a male Internist, has 29 years of experience and practices in Internal Medicine.
Where does Dr. Roger Sullivan practice?
Dr. Roger Sullivan has 2 office locations.
Dr. Roger Sullivan practices Internal Medicine near Massena, NY.
See Massena Internists.