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. John O'Brien:

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Specialties & Research

Dr. John O'Brien, MD is board certified in Emergency Medicine.

Education & Awards

Dr. O'Brien graduated from Wayne State University, Detroit. He has 2 awards.

Teacher of the year emergency medicine residency
Faculty teaching award american college of medicine


Dr. O'Brien has 7 hospital affiliations:

  • Sand Lake Hospital 
  • Arnold Palmer Medical Center 

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Additional Information
Dr. John F O'Brien MD is a male Emergency Medicine Specialist, has 30 years of experience and practices in Emergency Medicine.
Where does Dr. John F. O'Brien practice?
Dr. John O'Brien has 2 office locations.
Dr. John O'Brien practices Emergency Medicine near Orlando, FL.
See Orlando Emergency Physicians.