I enjoy the challenge of the diagnostic process of medicine, which is one of the many reasons I have chosen to work as a nocturnist, which is a hospital-based physician who works overnight. In my free time, I've been known to read books about the American Revolution and Colonial Period, or attend hard rock/metal concerts. Also, '90s music is in my head all of the time. 

A hospitalization is often wrought with difficult news and decisions; it is my honor to care for patients at these times. I enjoy working with a care team, to deliver high-quality care. Above all, I try to foster sincere relationships with patients, focusing on what is most important to each person.   

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 goal is to establish open communication with patients so we can work together on taking ownership of their health and wellness.

I enjoy the meaningful relationships I have built and the inspiration I draw from patients every day in clinic. A healthy dialogue is an important part of the provider-patient relationship. Outside of work, I enjoy spending time with my family, writing, and staying active outdoors.

I am originally from Russia. I underwent undergraduate and medical school education in Texas, and moved to the Boston area for postgraduate training in 2001. 

I have practiced in Dorchester and Weymouth, Massachusetts since 2006. I joined South Shore Medical Center and South Shore Hospital in the Fall of 2017.

I am an experienced pulmonologist who provides care for multiple pulmonary diseases, including COPD, asthma, sarcoidosis, interstitial lung disease, lung nodules and lung cancer.
 

I feel privileged to care for patients from age 18 to 95 and beyond. While I base my practice firmly on research-based evidence, I am aware that much is still unknown in medicine and that guidelines evolve over time. Open communication with my patients helps me respect patients' values and health goals.

Outside of work, you can usually find me exploring the beauty of nature with my four young children.

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.

I chose to become a primary care physician because I cherish the long-term relationships I establish with my patients. I enjoy taking care of patients of all ages and families at all stages of their lives. I believe listening is as important as speaking. I see my role as an educator, sharing my knowledge and helping patients translate that into healthy habits for the prevention and management of chronic illness. 

Outside of work, I enjoy traveling near and far with my husband and three children.

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 consider myself lucky to do something that I love. Children and teens are great at reminding adults about the little joys of life while also presenting us with various medical and behavioral challenges. I enjoy navigating these challenges with each family to find the right approach for their child. Outside of work, I love spending time with my husband and three (lovable and challenging) children. I enjoy running with my dog, biking, swimming, skiing, and occasionally a good day of yard work.