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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. Ruth Johnson:

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  1. Qualifications
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Specialties & Research

Dr. Ruth Johnson, MD, NP is board certified in Internal Medicine.

  • She has special expertise in 6 areas:
  • Breast Cancer
  • Breast Diseases
  • Ethics
  • Menopause
  • Metastatic Breast Cancer
  • Women's Health

Education & Awards

Dr. Johnson graduated from Mayo Medical School, Rochester.


Dr. Johnson has 4 hospital affiliations:

  • St Marys Hospital - Rochester 
  • Rochester Methodist Hospital 

> > > > Dr. Ruth Johnson, MD, NP

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Additional Information
Dr. Ruth E Johnson MD and NP is a female Internist, has 33 years of experience and practices in Internal Medicine.
Where does Dr. Ruth E. Johnson practice?
Dr. Ruth Johnson has 1 office location.
Dr. Ruth Johnson practices Internal Medicine near Rochester, MN.
See Rochester Internists.