> > > > Dr. John O'Brien, MD
Dr. John Gregory O'Brien MD is a male General Practitioner, has 32 years of experience and practices in Surgery and General Practice.
Video profile
Dr. John O'Brien has 2 office locations.
135 Newton Sparta Rd
Newton, NJ 07860

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).

Learn more about Dr. John O'Brien:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

View full profile

Patient Reviews

  • Currently 4 of 4 stars
Patient comments (0)

The overall average patient rating of Dr. John O'Brien is Excellent. Dr. O'Brien has been reviewed by 2 patients who have provided 0 comments. The rating is 4 out of 4 stars.

Specialties & Research

Dr. John O'Brien, MD is board certified in Surgery.

  • He has special expertise in 1 area:
  • Flu (Human Influenza)

Education & Awards

Dr. O'Brien graduated from Georgetown University, Washington.


Dr. O'Brien has 1 hospital affiliations:

  • Newton Memorial Hospital 

Accepted Insurance Plans

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

  • United Healthcare - 20 plans
  • Unicare - 12 plans
  • Cigna - 14 plans
  • The Empire Plan (UHC) - 1 plan


  • Spanish

Similar doctors nearby

Dr. Ronald Harris

General Practice
39 years experience
Newton, NJ

Dr. Brandon Ma

7 years experience
Newton, NJ

Dr. Anirudh Khanna

Internal Medicine
17 years experience
Newton, NJ

Dr. James Scales

General Practice
31 years experience
Newton, NJ

Dr. Robert Weinschenk

General Practice
31 years experience
Newton, NJ

Dr. Marie Czaplicki-Margiotti

General Practice
Sparta, NJ
Search All Similar Doctors
Additional Information
Where does Dr. John G. O'Brien practice?
Dr. John O'Brien practices Surgery and General Practice near Newton, NJ.
See Newton Surgeons and Newton General Practitioners.