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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.
Dr. O'Brien has 2 hospital affiliations:
- Advocate Illinois Masonic Medical Center
- John H. Stroger,Jr.,Hospital of Cook County
Accepted Insurance Plans
Dr. O'Brien accepts these health insurances in at least one office:
- Aetna - 3 plans