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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).

Patient Reviews

Patient comments (2)

The overall average patient rating of Dr. John Ruddy is Excellent. Dr. Ruddy has been reviewed by 6 patients who have provided 2 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 5.0
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. John Ruddy, MD is board certified in Internal Medicine.

  • He has special expertise in 1 area:
  • Flu (Human Influenza)

Education & Awards

Dr. Ruddy graduated from University of Minnesota, Twin Cities, Minneapolis. He has 2 awards.

Patients' Choice Award (2014)
On-Time Doctor Award (2014)


Dr. Ruddy has 5 hospital affiliations:

  • Abbott - Northwestern Hospital Inc 
  • University of Minnesota Medical Center, Fairview 

> > > > Dr. John Ruddy, MD

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Additional Information
Dr. John Michael Ruddy MD is a male Internist, has 9 years of experience and practices in Internal Medicine.
Where does Dr. John M. Ruddy practice?
Dr. John Ruddy has 2 office locations.
Dr. John Ruddy practices Internal Medicine near Cambridge, MN.
Additional practice locations include: North Branch, MN.
See Cambridge Internists.