As a family medicine trained hospitalist, I aim to maintain a coordinative approach to the care I give. I prioritize patient education in my treatment philosophy. 

I was drawn to family medicine because joining patients on their journeys to healthier, happier lifestyles is incredibly rewarding. I strive to always provide care that is patient-centered and evidence-based in both primary care and the hospital. Outside of medicine, I love traveling and enjoying new restaurants with my wife.

My mission includes inpatient acute care of general medical, telemetry and as well as consultative services for patients who require surgery.

I am board certified in Internal Medicine and Geriatric Medicine, with clinical epidemiology training. My clinical expertise include assisting geriatric patients with informed-decision making based on risk factors and predictors of long-term functional outcomes, and implementing interventions to optimize functional and cognitive outcomes.   

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.