About Dr. O'Brien

Karen E. O'Brien, MD

Dr. O’Brien is board-certified in obstetrics and gynecology, as well as maternal-fetal medicine. She practices at Beth Israel Deaconess Medical Center in Boston and at Anna Jaques Hospital in Newburyport several times per month. Dr. O’Brien is available for consult with Anna Jaques patients through the hospital’s clinical affiliation with BIDMC. She received her medical degree from Georgetown University and completed her post-graduate training at University of Pennsylvania Medical School.

NOTE: Appointments with Dr. O'Brien in Newburyport are made through the patient's OB/GYN office.


Board Certification

American Board of Obstetrics and Gynecology, American Board of Obstetrics and Gynecology (Maternal-Fetal Medicine)

Clinical Interests

Fetal Ultrasound, Prenatal Diagnostic Testing including Amniocentesis and Chorionic Villus Sampling, Fetal Demise, Preeclampsia, Recurrent Pregnancy Loss, Obesity in Pregnancy, Cervical Insufficiency

Medical School

Georgetown University, Washington, DC


University of Pennsylvania Medical School, Philadelphia, PA


University of Pennsylvania Medical School, Philadelphia, PA


Women and Infants Hospital of Rhode Island, Providence, RI


  • Maternal- Fetal Medicine

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