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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. Johnston graduated from Drexel University , Philadelphia.


> > > > Dr. Karen Johnston, MD

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Additional Information
Dr. Karen Cecile Johnston MD is a female Psychiatrist, has 28 years of experience and practices in Psychiatry.
Where does Dr. Karen C. Johnston practice?
Dr. Karen Johnston has 1 office location.
Dr. Karen Johnston practices Psychiatry near Tucson, AZ.
See Tucson Psychiatrists.