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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. Jason Grennan:

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Specialties & Research

Dr. Jason Grennan, MD is board certified in Diagnostic Radiology.

Education & Awards

Dr. Grennan graduated from University of Nebraska, Omaha.


Dr. Grennan has 99 hospital affiliations:

  • Healtheast St John's Hospital 
  • Fremont Area Medical Center 


  • English

> > > > Dr. Jason Grennan, MD

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Additional Information
Dr. Jason Edward Grennan MD is a male Diagnostic Radiologist, has 13 years of experience and practices in Diagnostic Radiology.
Where does Dr. Jason E. Grennan practice?
Dr. Jason Grennan has 1 office location.
Dr. Jason Grennan practices Diagnostic Radiology near Omaha, NE.
See Omaha Radiologists.