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Internist, Gastroenterologist (digestive)
17 years of experience
Video profile
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).

Learn more about Dr. John O'Connor:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (1)

The overall average patient rating of Dr. John O'Connor is Good. Dr. O'Connor has been reviewed by 11 patients who have provided 1 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.0
Promptness 4.3
Courteous Staff 4.3
Accurate Diagnosis 3.7
Bedside Manner 4.0
Spends Time with Me 4.0
Follows Up After Visit 3.3

Specialties & Research

Dr. John O'Connor, DO, MD is board certified in Gastroenterology.

  • He has special expertise in 5 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Constipation
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Education & Awards

Dr. O'Connor graduated from Philadelphia College of Osteopathic Medicine.


Dr. O'Connor has 8 hospital affiliations:

  • Albert Einstein Medical Center 
  • Nazareth Hospital 

> > > > Dr. John O'Connor, DO, MD

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Additional Information
Dr. John J O'Connor DO and MD is a male Internist, has 17 years of experience and practices in Internal Medicine and Gastroenterology.
Where does Dr. John J. O'Connor practice?
Dr. John O'Connor has 1 office location.
Dr. John O'Connor practices Internal Medicine and Gastroenterology near Norristown, PA.
See Norristown Internists and Norristown Gastroenterologists.