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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. John Showalter:

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Education & Awards

Dr. Showalter graduated from Pennsylvania State University, Hershey.


Dr. Showalter has 3 hospital affiliations:

  • Milton S. Hershey Medical Center 
  • University Hospital & Clinics-Holmes County 
  • University of Mississippi Medical Center 

> > > > Dr. John Showalter, MD

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Additional Information
Dr. John W Showalter MD is a male doctor and practices in Hospitalist.
Where does Dr. John W. Showalter practice?
Dr. John Showalter has 1 office location.
Dr. John Showalter practices Hospitalist near Jackson, MS.
See Jackson Hospitalists.