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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. Johanna Operschall:

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Education & Awards

Dr. Operschall graduated from Universitat Wien.


Dr. Operschall has 3 hospital affiliations:

  • NorthBay Medical Center 
  • NorthBay Vaca Valley Hospital 
  • NorthBay Occupational Health 

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Additional Information
Dr. Johanna Operschall MD is a female Preventative Medicine Specialist, has 31 years of experience and practices in Preventive Medicine.
Where does Dr. Johanna Operschall practice?
Dr. Johanna Operschall has 1 office location.
Dr. Johanna Operschall practices Preventive Medicine near Fairfield, CA.
See Fairfield Preventive Medicine Specialists.