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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. James O'Brien:

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Specialties & Research

Dr. James O'Brien, MD is board certified in Diagnostic Radiology.

Education & Awards

Dr. O'Brien graduated from University of Connecticut , Farmington.


Dr. O'Brien has 5 hospital affiliations:

  • Evangelical Community Hospital 
  • Hanover Hospital, Inc 

> > > > Dr. James O'Brien, MD

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Additional Information
Dr. James Sean O'Brien MD is a male Diagnostic Radiologist, has 29 years of experience and practices in Diagnostic Radiology.
Where does Dr. James S. O'Brien practice?
Dr. James O'Brien has 7 office locations.
Dr. James O'Brien practices Diagnostic Radiology near Mechanicsburg, PA.
Additional practice locations include: Lewisberry, PA and Camp Hill, PA.
See Mechanicsburg Radiologists.