Browse Health
Internist, Gastroenterologist (digestive)
33 years of experience
Accepting new patients
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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Patient Reviews

Patient comments (0)

The overall average patient rating of Dr. John Carlson is Excellent. Dr. Carlson has been reviewed by 5 patients who have provided 0 comments. The rating is 4.5 out of 5 stars.

Specialties & Research

Dr. John Carlson, MD is board certified in Internal Medicine and Gastroenterology.

  • He has special expertise in 6 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Constipation
  • Giardiasis
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Education & Awards

Dr. Carlson graduated from University of California at Los Angeles.


Dr. Carlson has 2 hospital affiliations:

  • Salinas Valley Memorial Healthcare System 
  • Salinas Valley Memorial Health Care District 


  • Spanish

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Additional Information
Dr. John R Carlson MD is a male Internist, has 33 years of experience and practices in Internal Medicine and Gastroenterology.
Where does Dr. John R. Carlson practice?
Dr. John Carlson has 1 office location.
Dr. John Carlson practices Internal Medicine and Gastroenterology near Salinas, CA.
See Salinas Internists and Salinas Gastroenterologists.