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Top Doctor

Barbara O’Brien

Beth Israel Deaconess Medical Center-Boston


Dr. O’Brien is a maternal-fetal medicine specialist and clinical geneticist at BIDMC who is board certification in three specialties: obstetrics and gynecology, maternal fetal medicine, and medical genetics. Her passion for caring for medical genetics stems from growing up with two brothers who had genetic disorders. She manages care for patients at high risk for pregnancy complications and has a deep appreciation of the fear and anxiety this can bring. She sees patients in Boston and Plymouth.

List the treatments and procedures you offer:

-Prenatal care and consultations for high-risk pregnancies
-Expert care in treating placental disorders
-Obstetric ultrasound
-Non-invasive prenatal testing
-Chorionic villous sampling
-Fetal blood sampling
-Genetic counseling

Awards or Certifications

-Excellence in Teaching Award from the Association of Professors of Gynecology and Obstetrics
-Boston Magazine’s Top Doctor recognition for two years in a row

What's your background, education and training?

-Bachelor of Arts in Biology, College of the Holy Cross, Worcester, MA
-Medical Degree from New York Medical College, Valhalla, NY
-Residency in Obstetrics and Gynecology, Tufts Medical Center, Boston, MA
-Fellowship in Maternal-Fetal Medicine, Tufts Medical Center, Boston, MA
-Fellowship in Medical Genetics, Tufts Medical Center, Boston, MA

What do patients have to say about you?

“Being in a high-risk pregnancy is indeed stressful enough, so having Dr. O’Brien by our side through it all was truly a blessing. Not only her expertise - but the care, support and compassion she has for her patients, allowed us to trust in her completely. While she successfully delivered both of our children, she also made a lasting impression on our growing family.”

“We want to thank you for being by our side throughout the pregnancy and delivery of our daughter, Annabelle. Even though we were only able to hold her for two hours, they were the most precious two hours of our lives. Your kindness, patience and ability to make us feel at ease will never be forgotten.”

“At 20 weeks into an otherwise uneventful first pregnancy, we learned of fetal abnormalities at our anatomy ultrasound. Dr. O'Brien was on staff that day and notified us of the findings. From that day forward, she was always available to us for consultation, morning, noon and night. She put us in contact with the best experts in the field and always gave us her honest, but professional, opinion. She helped support us emotionally and medically during an extremely difficult time in our lives, and we will always be immensely grateful for that.”

Insurances Accepted

Most major insurances accepted

Special expertise

Fetal Ultrasound, Genetic Disorders, Twin to Twin Transfusion Syndrome (TTTS),


Top Doctor: 2020, 2021, 2022


Primary Hospital: Beth Israel Deaconess Medical Center-Boston