Browse Health
Internist, Cardiologist (heart)
34 years of experience
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).

Patient Reviews

5.0
  •  
(2)
Patient comments (1)

The overall average patient rating of Dr. John O'Brien is Excellent. Dr. O'Brien has been reviewed by 2 patients who have provided 1 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.7
  •  
Promptness 4.3
  •  
Courteous Staff 4.3
  •  
Accurate Diagnosis 5.0
  •  
Bedside Manner 5.0
  •  
Spends Time with Me 4.3
  •  
Follows Up After Visit 5.0
  •  

Specialties & Research

Dr. John O'Brien, MD is board certified in Internal Medicine and Cardiovascular Disease.

  • He has special expertise in 6 areas:
  • Acute Coronary Syndrome (ACS)
  • Heart Block
  • Heart Failure
  • High Blood Pressure (Hypertension)
  • Myocardial Infarction
  • Unstable Angina

Education & Awards

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


Affiliations

Dr. O'Brien has 2 hospital affiliations:

  • Inova Fair Oaks Hospital 
  • Inova Fairfax Hospital 

Languages

  • English

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Additional Information
Dr. John Terence O'Brien MD is a male Internist, has 34 years of experience and practices in Internal Medicine, Cardiovascular Disease, Cardiology, and Interventional Cardiology.
Where does Dr. John T. O'Brien practice?
Dr. John O'Brien has 3 office locations.
Dr. John O'Brien practices Internal Medicine, Cardiovascular Disease, Cardiology, and Interventional Cardiology near Annandale, VA.
Additional practice locations include: Falls Church, VA.
See Annandale Internists and Annandale Cardiologists.