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Dr. John Allan Walker MD is a male Internist, has 37 years of experience and practices in Internal Medicine and Gastroenterology.
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 Walker:

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  1. Qualifications
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Patient Reviews

  • Currently 2.5 of 4 stars
Patient comments (0)

The overall average patient rating of Dr. John Walker is Good. Dr. Walker has been reviewed by 2 patients who have provided 0 comments. The rating is 2.5 out of 4 stars.

Specialties & Research

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

Education & Awards

Dr. Walker graduated from The University of Texas Southwestern, Dallas.


Dr. Walker has 3 hospital affiliations:

  • Providence Medford Medical Center 
  • Rogue Valley Medical Center 
  • Medford 

Accepted Insurance Plans

Dr. Walker accepts these health insurances in at least one office:

  • Providence Health Plan - 17 plans
  • Regence Blue Cross Blue Shield - 5 plans
  • Great-West Healthcare - 3 plans
  • ODS Health Plans - 4 plans
  • Cigna - 4 plans
  • Aetna - 2 plans


  • Spanish

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Additional Information
Where does Dr. John A. Walker practice?
Dr. John Walker practices Internal Medicine and Gastroenterology near Medford, OR.
See Medford Internists and Medford Gastroenterologists.