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.

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.

My treatment focus is to ensure that each and every patient receives the best care and that their care plan is tailored to meet their individual needs and diagnosis. 

I believe that working with hematology and oncology patients is a calling and it is truly an honor to be a part of each patient’s care. It is extremely important that every patient have a treatment plan that fits their diagnosis and needs, and that this plan is communicated clearly with all members of the treatment team.

Outside of work, I enjoy reading, hiking, and walking the beach.

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.

Patients with vascular disease often face many challenges—medical and otherwise. Consequently, I recognize that there are many important aspects to your care.  I also appreciate that having surgery is a major life event. With all of this in mind, I will do my best to provide you with patient-centered, high quality, effective and compassionate care.

My mission is to provide an accurate diagnosis in patient's with complicated presentations and complex disease states.

I am drawn to Hospital Medicine for the acute care problem solving. I believe that the patient's "story" should be accurately presented and the diagnosis should "fit" the presentation. If it doesn't, the work up continues to reveal the missing piece of the puzzle. Communicating the plan of care and expectations re:hospital course allow for a more positive experience during an otherwise difficult time. Outside of work I enjoy spending time near the water in the Ocean State and attending car shows.

I grew up in a small town in Northern New York, and joined South Shore Hospital and Brigham and Women's Hospital in 2012. I completed my undergraduate and medical education as well as my general surgical training and surgical critical care fellowship at the University of Rochester in Rochester, NY. I am also fellowship trained in minimally invasive and bariatric surgery from Dartmouth Hitchcock Medical Center. I have had a long-standing passion in bariatric and weight-loss surgery and my goal in joining the South Shore Hospital team was to bring that expertise and opportunity to the South Shore community. The hospital has been very supportive in this endeavor and over the past few years we have created a collaborative team of providers from across institutions to start the South Shore Hospital Center for Metabolic and Bariatric Surgery. As medical director it has been my pleasure to help the program grow into a strong clinical component  of the department of surgery and create more outreach into the community. I am also actively engaged as a trauma surgeon and have a busy general surgery practice taking care of a variety of disease processes including the minimally invasive management of gallbladder disease, hernia, GERD, hiatal hernias, as well as the surgical management of a variety of other gastrointestinal disorders. When I am not working, I enjoy the simple things in life like relaxing by a large campfire or spending the day at the beach with my family. 

I strive to provide high quality, safe, comprehensive anesthesia services and care to all my patients in the perioperative period. 

In the 8 years that I have been practicing anesthesia, I am resolute in my belief that creating and fostering a team environment with effective communication is crucial to developing an atmosphere of trust and the key to providing high quality care inside and outside of the OR with patients and colleagues alike.  As a collegiate athlete and previous marketing manager in my first career, I try to bring these skills and values into the OR and Anesthesia department. Outside of work, I love recreating in the outdoors. From snowboarding, hiking, biking, to waterskiing, beach lounging and lake time with my family, I love it all. Most importantly I love spending time with my husband and two daughters.

As the nurse practitioner navigator of the Lower Limb Preservation Team, it is my privilege to help patients with complex wounds navigate our healthcare system. We are dedicated to promoting prevention, maintenance, and treatment of acute or chronic wounds. Along with other dedicated providers, I strive to ensure that each patient is educated in the healing and disease process and understands prevention of wound re-occurrence. In my role, it is vital that each individual is connected with the right care at the right time to promote wound healing. With almost 20 years of experience it is my privilege to bring my skills, knowledge and hardworking ethics delivered with empathy to the South Shore Community.

My mission is to relieve pain and suffering by healing patients' wounds as fast as possible.

I have been practicing plastic surgery with an emphasis on complex wounds since 1999.  In addition to providing advanced wound care, surgical treatment and hyperbaric oxygen therapy, I am passionate about educating the next generation of physicians and participating in research that will transform the science of wound care. As the Research Director, I coordinate and lead clinical trials of potential new wound  therapies, providing the opportunity for our patients to participate in their own community.