My mission is to teach patients how better health habits can prevent many diseases.

It is a privilege to help people and establish long-term relationships with my patients. I believe that everyone's medical care should be individually tailored. We all have unique characteristics that need to be considered when deciding a treatment plan. Communication is paramount. Outside of work, I love exercising, working in my garden, and spending time at the Cape; however, most importantly I love spending time with my family.
 

Dr. O'Brien is Medical Director of Maternal-Fetal Medicine at South Shore Health. 

As a Maternal-Fetal Medicine physician, I am dedicated to caring for women and families navigating high-risk and medically complex pregnancies with expertise, compassion, and individualized attention. 

I strive to integrate evidence-based medicine with a holistic approach that recognizes the physical, emotional, and social factors that shape each patient’s experience. 

I am also committed to advocating for equitable healthcare and improving access and outcomes for marginalized and underserved communities.

A life-long South Shore resident, John's is dedicated to providing the highest level of anesthesia care in the community setting. When not in the OR, John enjoys spending time with his two daughters, his rescue dog, tending to his bees hives, and being by the ocean.