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).
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- Currently 4 of 4 stars
The overall average patient rating of Dr. Maria O'Brien is Excellent.
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Specialties & Research
Dr. Maria O'Brien, MD is board certified in Family Medicine.
- She has special expertise in 1 area:
- Women's Health
Education & Awards
Dr. O'Brien graduated from Universitatea De Medicina Si Farmacie Carol Davila, Bucharest.
Dr. O'Brien has 4 hospital affiliations:
- Middlesex Hospital
- Bristol Hospital
Accepted Insurance Plans
Dr. O'Brien accepts these health insurances in at least one office:
- Cigna - 7 plans
- MVP Health Care Preferred Care - 23 plans
- Oxford Health Plans - 3 plans