I believe in the prevention of disease and the promotion of healthy lifestyles for all children through education and dedication to quality care.

I like to treat each patient and family as individuals. I enjoy earning their trust and getting to know them as well as helping to navigate their child’s successes and challenges. I take pride in making sure we have full and open communication in our visits and your visit never feels rushed. My mission is to provide our patients with the best and most comprehensive pediatric care possible from birth until 21 years of age. I adhere to the “Golden Rule” in my life and practice which is the principle of treating others as one wants to be treated. Outside of work I enjoy exercising, horse back riding, and spending time with my family. I am an avid animal lover and we have many animals in our family.

It has been my privilege to practice medicine and to have made a difference in the lives of my patients over the past 21 years. I enjoy the challenges of practicing internal medicine in a hospital setting and working as part of a team with our excellent hospitalist providers, consultants, nursing and ancillary staff. I served as Medical Director of the Hospitalist Department from 2009-2015 and am proud to say that we have an amazing program with dedicated clinicians who genuinely enjoy the care of hospitalized patients and are committed to excellence in their every day work. I enjoy giving back by participating in the Pan Mass Challenge which raises critical funds for cancer research and the Multiple Sclerosis cycling events. I enjoy boating, hiking and camping, and long distance bicycling and, most importantly, spending time with my family.

My mission is to provide culturally competent, evidence-based, and compassionate care to improve the quality of life of all of my patients. 

Medical care that not only tends to patients’ physiological ailments but imparts a sense of emotional comfort is the preeminent force in my practice. I completed my training at Tufts University School of Medicine, where I received a Masters Degree in Medical Science and another Masters Degree in Public Health.

William Tollefsen, MD is the EMS and MIH Medical Director for South Shore Health. Dual-boarded in Emergency Medicine and EMS Medicine, Dr. Tollefsen works clinically as an Emergency Physician at South Shore Health in addition to his role as EMS Medical Director.

One of few physicians in the country to receive the prestigious "FAEMS" recognition, Dr. Tollefsen is also the Medical Director for OEMS Region IV, serving 61 cities and towns of the Metro-Boston EMS Council. As the current EMS Medical Director for eight municipal and three private ambulance services on the South Shore, Dr. Tollefsen interacts and provides oversight for over 400 Paramedics.

Dr. Tollefsen graduated from New York Medical College and completed residency training in Emergency Medicine at Harvard University, Brigham and Women's, and Massachusetts General Hospital. He completed a fellowship in Emergency Medical Services and Critical Care Transport at the University of Massachusetts, where he worked as an Emergency Physician and Flight Physician for UMASS LifeFlight. He completed an MBA at the Isenberg School of Management at UMASS Amherst, and holds a Master of Medical Science degree from the Boston University School of Medicine.

A former pre-hospital provider, he is actively involved in EMS system design, paramedic education and Critical Care Transport Systems. He works closely with multiple EMS, Fire and Law Enforcement agencies throughout Massachusetts.

His research interests include systems of care, resuscitation, airway management, and paramedic education.

My mission is to give the same care to my patients as I would want for my family or myself.    

I was born and raised in the Boston area.  After a long period of schooling and training across the country (New Hampshire, Ohio, California, Pennsylvania), I have been honored to return home to take good care of my people!  When not fixing retinas, I enjoy spending time outdoors with my wife and three children.   

My mission is to provide comprehensive care and holistic support to patients throughout their cancer journey.

With over a decade of service in healthcare, I have expertise in clinical practice, research, and patient-centered care. I earned my Doctor of Nursing Practice degree from UMASS Worcester. My experience ranges across inpatient and outpatient settings, including hematology, oncology, clinical research, medical/surgical care, and primary care.  Outside work, I enjoy sailing and spending time with my family including our dog Una. 

Liana MacDonald is a Women’s Health Nurse Practitioner. She graduated from Regis College with a Master of Science in Nursing in 2020. She obtained her Bachelor of Science in Nursing from the University of Massachusetts Boston in 2016 and began her nursing career in the Emergency Department. She has been working as a Labor and Delivery nurse since 2019.

Liana is passionate about health equity and eliminating the gap in care amongst different races and ethnicities. She is proud of her focus on adolescent health, substance use disorders in pregnancy, and trauma-informed care.  

When not at work, Liana can be found spending her time with family, friends, and her rescue dog. She loves to travel to new cities and countries and learn about different cultures. She also loves to give back to her community.