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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

Patient comments (1)

The overall average patient rating of Dr. John O'Brien is Good. Dr. O'Brien has been reviewed by 4 patients who have provided 1 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 3.0
Promptness 3.7
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

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

  • He has special expertise in 4 areas:
  • Hip Osteoarthritis
  • Knee Osteoarthritis
  • Osteoarthritis (Hand and Wrist)
  • Sports Medicine

Education & Awards

Dr. O'Brien graduated from State University of New York Downstate, Brooklyn.


Dr. O'Brien has 11 hospital affiliations:

  • Hartford Hospital 
  • St Francis Hospital & Medical Center 


  • English

> > > > Dr. John O'Brien, MD

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Additional Information
Dr. John J O'Brien MD is a male Orthopaedic Surgeon, has 44 years of experience and practices in Orthopaedic Surgery.
Where does Dr. John J. O'Brien practice?
Dr. John O'Brien has 4 office locations.
Dr. John O'Brien practices Orthopaedic Surgery near South Windsor, CT.
Additional practice locations include: Hartford, CT and Newington, CT.
See South Windsor Surgeons.