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Dr. John Bryson Marshall MD is a male Internist, has 33 years of experience and practices in Internal Medicine and Gastroenterology.
Video profile
Dr. John Marshall has 3 office locations.
Sixth Ward
1 Hospital Dr
Columbia, MO 65201

Phone Number
Locations and availability (3)
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 Marshall:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

2.5
  • Currently 2.5 of 4 stars
(3)
Patient comments (0)

The overall average patient rating of Dr. John Marshall is Good. Dr. Marshall has been reviewed by 3 patients who have provided 0 comments. The rating is 2.5 out of 4 stars.

Patient Ratings
Ease of Appointment 4.0
  • Currently 4 of 4 stars
Promptness 4.0
  • Currently 4 of 4 stars
Courteous Staff 4.0
  • Currently 4 of 4 stars
Accurate Diagnosis 4.0
  • Currently 4 of 4 stars
Bedside Manner 4.0
  • Currently 4 of 4 stars
Spends Time with Me 4.0
  • Currently 4 of 4 stars

Specialties & Research

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

  • He has special expertise in 1 area:
  • Colonoscopy

Education & Awards

Dr. Marshall graduated from University of Missouri at Columbia.


Affiliations

Dr. Marshall has 7 hospital affiliations:

  • Columbia Regional Hospital 
  • University of Missouri Hospital & Clinic 

Accepted Insurance Plans

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

  • United Healthcare - 15 plans
  • Great-West Healthcare - 3 plans
  • Cigna - 8 plans
  • Humana - 3 plans
  • Missouri Medicaid - 1 plan


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Additional Information
Where does Dr. John B. Marshall practice?
Dr. John Marshall practices Internal Medicine and Gastroenterology near Columbia, MO.
Additional practice locations include: Hillsborough, NC.
See Columbia Internists and Columbia Gastroenterologists.