My philosophy is to listen carefully, ask the right questions, and offer my expertise within the scope of my skills.

I was born in New York City to immigrant Latino parents. Yes, I root for the Yankees, of course!

Outside of work, I enjoy physical fitness and spending time with my family. 
 

My mission is to provide exceptional care to hematology and oncology patients, and support patients and their families when they are at their most vulnerable. 

It is a privilege and an honor to have the opportunity to establish meaningful, long-term relationships with my patients and their families. I believe in open, honest communication and a patient-centered model when formulating a treatment plan. I look forward to supporting my patients not only physically, but mentally and emotionally as well. 

Outside of work, I enjoy spin classes, going to the beach, and spending time with family and friends. 

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.