My focus is to provide patients with knowledge and insight into their specific health conditions.

I pride myself on taking a patient-centered approach to building effective care plans that go beyond the diagnosis of my patients. I am a certified Physician's Assistant who graduated from MCPHS University, Boston with a Master's of Physician Assistant Studies (MPAS.) My previous experience is in primary care and outpatient cardiology. 

Originally from Western Massachusetts, I moved to the South Shore after graduation. I enjoy spending time with my friends, family, and puppy, Oakes. I am also an avid reader and beach-goer. 

My mission is to provide the best primary care for my patients to prevent disease. This includes regular follow up of chronic conditions and keeping patients up to date with routine screenings.

It is a privilege to provide primary care and establish long-term relationships with my patients. I believe that everyone's medical care should be individually tailored, and communication is key to providing excellent care. Outside of work, I love to spend time with family and friends. My hobbies include skiing, quilting and cooking. 

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.

I try to have a collaborative approach to disease management and prevention, with an eye towards the most value for the patient's dollar.

I have been lucky enough to be a family physician since 2010. Since then, I have worked to provide cost-effective and compassionate care for my patients. I'm also committed to advocacy for my patients and fellow MD's outside the office, though my role on the Massachusetts Academy of Family Physicians. I enjoy traveling, hiking, gardening, and computer gaming, when my young children allow any of them.

My career started in the US Army and it was a privilege to serve and care for women in the military and their family members while training at Walter Reed Army Medical Center and then stationed overseas in Germany for 4 years. I returned to the South Shore area since this is home and have been been fortunate to raise my family and to practice here since 2002. I am so grateful to have the opportunity to care for the women in our community. Although I transitioned to a more administrative role, I continue to practice obstetrics and gynecology here in the hospital and will continue to strive to offer the best care to patients through open communication and strong relationships.

I graduated from Colegio Nacional de San Isidro in Buenos Aires, Argentina and completed my medical degree at Buenos Aires University School of Medicine. My surgical and urological residency were spent at the Hospital Italiano in Buenos Aires. I was an attending Urologist at Hospital Roffo in Buenos Aires until I came to the United States. At that point I was a Urology Fellow working on a research project at the Children’s Hospital and Harvard Medical School in Boston. I completed my American residencies in urology and surgery at the University of Massachusetts.

I enjoy spending time with my wife and three children.