Browse Health
Internist, Adolescent Specialist
22 years of experience
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

4.0
  • Currently 4 of 4 stars
(1)
Patient comments (0)

The overall average patient rating of Dr. John O'Brien is Excellent. Dr. O'Brien has been reviewed by 1 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 Internal Medicine.


Education & Awards

Dr. O'Brien graduated from Rosalind Franklin University, North Chicago.


Affiliations

Dr. O'Brien has 2 hospital affiliations:

  • Advocate Illinois Masonic Medical Center 
  • John H. Stroger,Jr.,Hospital of Cook County 

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

Similar doctors nearby

Dr. Amit Joshi

Internal Medicine
13 years experience
Chicago, IL

Dr. Omar Shamieh

Internal Medicine
11 years experience
Chicago, IL

Dr. Robert Katz

Internal Medicine
40 years experience
Chicago, IL

Dr. Janet Wolter

Internal Medicine
Chicago, IL

Dr. Sean O'Mahony

Internal Medicine
19 years experience
Chicago, IL

Dr. Clifford Kavinsky

Internal Medicine
24 years experience
Chicago, IL
Search All Similar Doctors
Additional Information
Dr. John Martin O'Brien MD is a male Internist, has 22 years of experience and practices in Internal Medicine and Adolescent Medicine.
Where does Dr. John M. O'Brien practice?
Dr. John O'Brien has 3 office locations.
Dr. John O'Brien practices Internal Medicine and Adolescent Medicine near Chicago, IL.
See Chicago Internists and Chicago Adolescent Specialists.