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

  • Currently 4 of 4 stars
Patient comments (2)

The overall average patient rating of Dr. John Farrell is Excellent. Dr. Farrell has been reviewed by 3 patients who have provided 2 comments. The rating is 4 out of 4 stars.

Specialties & Research

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

Education & Awards

Dr. Farrell graduated from Saint Louis University.


Dr. Farrell has 9 hospital affiliations:

  • Missouri Baptist Medical Center 
  • Depaul Health Center 

Accepted Insurance Plans

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

  • Aetna - 3 plans
  • United Healthcare - 15 plans
  • Great-West Healthcare - 3 plans
  • Molina Healthcare - 1 plan
  • Humana - 12 plans
  • Cigna - 2 plans
  • USA H & W Network - 1 plan
  • Missouri Medicaid - 1 plan

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Additional Information
Where does Dr. John S. Farrell practice?
Dr. John Farrell practices Internal Medicine and Gastroenterology near Saint Louis, MO.
Additional practice locations include: Bridgeton, MO.
See Saint Louis Internists and Saint Louis Gastroenterologists.