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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 Opsahl:

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Specialties & Research

Dr. John Opsahl, MD is board certified in Internal Medicine and Nephrology.

  • He has special expertise in 1 area:
  • High Blood Pressure (Hypertension)

Education & Awards

Dr. Opsahl graduated from University of Minnesota, Twin Cities, Minneapolis.


Dr. Opsahl has 5 hospital affiliations:

  • St Francis Regional Medical Center 
  • Park Nicollet Methodist Hospital 

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Additional Information
Dr. John Opsahl MD is a male Internist, has 32 years of experience and practices in Internal Medicine and Nephrology.
Where does Dr. John Opsahl practice?
Dr. John Opsahl has 1 office location.
Dr. John Opsahl practices Internal Medicine and Nephrology near Minneapolis, MN.
See Minneapolis Internists and Minneapolis Nephrologists.