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. Karen O'Brien:
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- Currently 4 of 4 stars
The overall average patient rating of Dr. Karen O'Brien is Excellent.
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Specialties & Research
Dr. Karen O'Brien, MD is board certified in Obstetrics & Gynecology and Maternal & Fetal Medicine.
- She has special expertise in 4 areas:
- Fetal Ultrasound
- Hot Flashes
Education & Awards
Dr. O'Brien graduated from Georgetown University, Washington.
Dr. O'Brien has 9 hospital affiliations:
- South Shore Hospital
- Beth Israel Deaconess Medical Center
Accepted Insurance Plans
Dr. O'Brien accepts these health insurances in at least one office:
- Humana - 6 plans
- Aetna - 3 plans
- United Healthcare - 14 plans
- Boston Medical Center Health Net Plan - 2 plans
- Cigna - 2 plans
- USA H & W Network - 1 plan
- Unicare - 12 plans
- Fallon Community Health Plan (FCHP) - 4 plans
Similar doctors nearby
- Additional Information
- Where does Dr. Karen E. O'Brien practice?
Dr. Karen O'Brien practices Obstetrics & Gynecology and Maternal & Fetal Medicine near Boston, MA.
Additional practice locations include: Newburyport, MA and Melrose, MA.
See Boston Obstetricians & Gynecologists.