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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. Johnson graduated from University of Nebraska, Omaha.


Dr. Johnson has 2 hospital affiliations:

  • St Joseph Health Center 
  • St Joseph Hospital West 

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Additional Information
Dr. Michael Oliver Johnson MD is a male Internist, has 23 years of experience and practices in Critical Care Medicine.
Where does Dr. Michael O. Johnson practice?
Dr. Michael Johnson has 1 office location.
Dr. Michael Johnson practices Critical Care Medicine near Saint Charles, MO.
See Saint Charles Critical Care Practitioners.