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.

My treatment philosophy is to provide high quality, compassionate, and patient centered care.

Throughout my career at BU Medical Center and South Shore Health, I have divided my time between healthcare administration and direct patient care. Administratively, I have focused on medical education, patient safety and quality improvement. However, my true passion for medicine is driven by the bonds I build with my patients and caring for them throughout life. 

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.

As the Medical Director of Addiction Medicine at South Shore Health, I work to tackle the defining medical challenge of our time: Substance use and alcohol use disorder.

In addition to seeing adult patients at South Shore Hospital, I work with colleagues across South Shore Health to develop and implement a comprehensive addiction medicine treatment program. This program will connect patients with the resources they need to manage substance use disorder, no matter if they come to us through the Emergency Department, primary care, or another setting. Additionally, I serve as Medical Director for Spectrum Health System's opioid treatment program, ATS/detox, CSS, and therapeutic community in Weymouth.

Prior to my work at South Shore Health, I helped launch the Bridge Clinic at Boston Medical Center, which connected patients with treatment options for substance use disorder. I also served as Medical Director for Spectrum Health Systems’ Opioid Treatment Program in Weymouth.

In my spare time, I enjoy baseball, reading fiction, snowboarding, and cooking.

I grew up in southern Maine and attended Harvard University for my undergraduate education. While at Tufts University School of Medicine and Mount Auburn Hospital in Cambridge, my focus was on primary care medicine. I believe in the dignity of each of my patients. Respect, compassion, and reliability are among my goals in patient care. In my free time, I enjoy the outdoors and the arts, usually in the company of my family. 

I started practicing primary care at Boston Medical Center in 2001 and was part of the Faculty of Boston University's School of Medicine. In 2010, I transitioned to the Quincy and Braintree area to continue serving as a primary care physician and urgent care provider. I graduated from the University of Puerto Rico School of Medicine and completed my residency in Internal Medicine at the Hospital of Saint Raphael/Yale-New Haven Hospital.

Kelly Lannutti, DO is the Director of Clinical Transformation and co-Medical Director of Mobile Integrated Health (MIH) for South Shore Health.

She is originally from Philadelphia and completed her medical training at Philadelphia College of Osteopathic Medicine. Dr. Lannutti joined South Shore Health in 2017 as the Chief of Urgent Care at South Shore Medical Center (SSMC). In 2019, Dr. Lannutti became Medical Director of Urgent Care for South Shore Health and recently moved to the Population Health and Contracting team.

In her current role, Dr. Lannutti oversees clinical initiatives and innovative care redesign programs including Mobile Integrated Health, Hospital at Home, Telehealth, and Remote Patient Monitoring.

Dr. Lannutti is passionate about rethinking how healthcare is delivered and establishing South Shore Health as a leader in innovation and value-based care.

I enjoy helping people stay healthy through preventative medicine, as well as treating both developing and ongoing health issues. I especially value getting to know my patients over time.