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 goal is to provide compassionate and equitable medical care to patients seeking care for breast-related concerns, including but not limited to breast lumps, abnormal screening mammograms, benign breast masses, and previous or current breast cancer diagnoses. 

I am a graduate of the Tufts University School of Medicine Physician Assistant and Masters in Public Health dual degree program. I have been working at the Dana-Farber Cancer Institute/Brigham & Women’s Hospital Division of Breast Surgery since June 2021.

It is my priority to provide care to patients that is skilled and supportive. I strive to accommodate a patient’s unique and individual needs such that all patients feel cared for and well-informed. I have professional interests in patient-oriented outcomes research and have studied coping and psychosocial wellbeing among adolescents and young adults with cancer. I am originally from Western Massachusetts, and my hobbies include hiking, skiing, and spending with family, friends, and my dog.  

I want each patient I care for to feel heard, safe, well-informed and active participants in their healthcare.

Midwifery has been an (almost) lifelong passion of mine. I saw my aunt give birth to my cousin when I was 10 years old and knew instantly that caring for women and babies was what I was meant to do. I started as a labor and delivery nurse in 2011 and completed midwifery school in 2015. I have attended births in the hospital and home setting. I love caring for women in pregnancy and all other stages in their lives. In my free time, I enjoy hanging at our family beach house on the Jersey Shore, snowmobiling in Pittsburg, NH and spending time with my husband and 2 daughters. 

My passion for family medicine is rooted in the ability to take part in the growth and development of my patients as they reach milestones in their lives.

As a family nurse practitioner, it is a privilege to have the opportunity to build connections with my patients throughout their lifetime. Being a strong advocate of patient-centered care, I am committed to supporting my patients in a collaborative manner in order to help them meet and exceed their health goals. In my spare time I enjoy exercising, reading, and spending time with family.

My mission is to provide unbiased care to all individuals I encounter in my practice.

It gives me great pleasure to care for individuals in what may be some of the happiest and most vulnerable moments of their lives. I am passionate about getting to know patients and their families as we create partnerships to help them navigate their pregnancy and birth journey. It is my goal to help empower patients to make informed decisions about their pregnancy, health, and birth by providing them with knowledge and guidance.

Outside of work, I love spending time with my husband and children. My hobbies include refinishing furniture and woodworking.

My goal is to help empower women and families and encourage them to be active participants in their care. 

I became familiar with midwifery care 20 years ago when I gave birth to my daughter with a group of amazing midwives. I was an experienced Labor and Delivery nurse at the time but, after my experience with the midwives, I knew that becoming a midwife was my true calling. I find every birth that I attend to be unique and special in its own way. I strive to help women achieve the labor and birth they desire. Everyone is different, and I enjoy getting to know families and helping them navigate this very pivotal time in their lives. In my free time, I enjoy hiking, paddleboarding, and crocheting.

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.