My focus is to manage and treat patients with a variety of Urologic disorders. I hope to educate them on future prevention of these issues as well. I look forward to assisting in providing surgical treatment for patients with different Urologic cancers.

My interest in medicine was first sparked when my father was diagnosed with esophageal cancer when I was nine years old. I went to Northeastern University for my undergraduate studies and Cornell Medicine for my PA degree. I enjoy playing a variety of sports and spending time with my wife and two kids in my free time.

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.