> > > > Dr. John O'Brien, MD
Dr. John Patrick O'Brien MD is a male Internist, has 49 years of experience and practices in Internal Medicine and Nephrology.
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Dr. John O'Brien has 2 office locations.
131 Jefferson Davis Blvd
Ste D
Natchez, MS 39120

Phone Number
Locations and availability (2)
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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Specialties & Research

  • He has special expertise in 1 area:
  • Multiple Sclerosis (MS)

Education & Awards

Dr. O'Brien graduated from New York Medical College, Valhalla.


Dr. O'Brien has 3 hospital affiliations:

  • Natchez Community Hospital/Swing Bed 
  • Natchez Regional Medical Center 
  • Natchez Community Hospital 

Accepted Insurance Plans

Dr. O'Brien accepts these health insurances in at least one office:

  • Blue Cross Blue Shield of Mississippi - 1 plan

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Additional Information
Where does Dr. John P. O'Brien practice?
Dr. John O'Brien practices Internal Medicine and Nephrology near Natchez, MS.
See Natchez Internists and Natchez Nephrologists.