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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 Williamson:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (2)

The overall average patient rating of Dr. John Williamson is Good. Dr. Williamson has been reviewed by 5 patients who have provided 2 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.3
Promptness 3.7
Courteous Staff 3.7
Accurate Diagnosis 3.7
Bedside Manner 3.7
Spends Time with Me 3.7
Follows Up After Visit 3.7

Specialties & Research

Dr. John Williamson, MD is board certified in Internal Medicine and Cardiovascular Disease.

  • He has special expertise in 5 areas:
  • Acute Coronary Syndrome (ACS)
  • Heart Block
  • High Blood Pressure (Hypertension)
  • High Cholesterol (Hypercholesterolemia)
  • Unstable Angina

Education & Awards

Dr. Williamson graduated from Stanford University.


Dr. Williamson has 9 hospital affiliations:

  • Saint Mary's Regional Med. Center. 
  • Renown Regional Medical Center 


  • English

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Additional Information
Dr. John S Williamson MD is a male Internist, has 40 years of experience and practices in Internal Medicine and Cardiovascular Disease.
Where does Dr. John S. Williamson practice?
Dr. John Williamson has 1 office location.
Dr. John Williamson practices Internal Medicine and Cardiovascular Disease near Reno, NV.
See Reno Internists and Reno Cardiologists.