My focus is to manage and treat patients with a variety of Urologic disorders. I hope to educate them on future prevention of these issues as well. I look forward to assisting in providing surgical treatment for patients with different Urologic cancers.

My interest in medicine was first sparked when my father was diagnosed with esophageal cancer when I was nine years old. I went to Northeastern University for my undergraduate studies and Cornell Medicine for my PA degree. I enjoy playing a variety of sports and spending time with my wife and two kids in my free time.

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 chose family medicine so that I could treat a wide spectrum of medical conditions and so that I could treat all ages, including newborns and multiple generations, in one family. This helps me to treat the whole person because knowing a person's social background is essential. I firmly believe that emotional and mental well-being are key factors in maintaining good overall health.

I grew up in Quincy and love living and working near my family and friends. I enjoy spending time at the beach, traveling to exotic places, going out dancing, skiing, cooking/baking, and following Boston sports teams.

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.