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.

Every patient has unique challenges and circumstance of their disease.  My goal is to provide expert care that is tailored to the patient and their family's needs.  Using advanced and proven minimally invasive techniques such as thoracoscopy, robotic and endolumenal treatments, my goal is to minimize pain and accelerate the recovery process so that patients can return to their normal lives.  For patients with cancer, a thorough workup and expedited care is important in getting treated correctly.  Lung cancer, esophageal cancer, thymomas and mediastinal cancers can be difficult to navigate.  I will shepard patients and families through the tests, consultations, and treatments needed so that patients always know that they are being cared for.  For patients with esophageal conditions such as reflux, hiatal hernias, diverticular disease, achalasia, etc., there are minimally invasive surgical options that can provide excellent symptom relief and improve the quality of their lives.  In addition, I treat the multitude of thoracic diseases including thoracic outlet issues, hyperhydrosis, chest wall disorders such as pectus, metastatic cancer issues, end stage cancer surgical therapy among others. 

I have been a physician's assistant in women’s health for close to 30 years on the South Shore. I enjoy seeing women in their many phases of life. I feel privileged when patients I met at the start of my career bring their daughters and granddaughters in to see me for their care. When not working, I enjoy spending time with my family.

M. Reza Afrasiabi, MD

My mission is to provide every patient on the acute care surgery and trauma surgery services with the highest quality of care inside and outside of the operating room.

I was raised in Southern California and moved to Boston to complete my undergraduate degree in mathematics at MIT.  After completing general surgery residency in Chicago, I moved back to Boston to complete fellowships in Surgical Critical Care and Acute Care Surgery at the Brigham. I love the outdoors and spend my free time snowboarding and hiking throughout the northeast with my friends and family.

My philosophy is to have each patient feel safe and comfortable during their visits as we work together to obtain optimal women's health. 

I enjoy seeing patients on an ongoing basis and strive to develop long-term relationships that will allow me and my nurse practitioners to tailor our medical care for each individual patient's needs. We see patients in a setting that tries to foster a relaxed and friendly approach to patient care.

I am certified in menopause management as well as robotic surgery. I value being able to offer women information to assist them with transition through menopause. In addition, I have worked hard to make sure that women in the South Shore area have access to minimally invasive surgery and all it's benefits by offering robotic surgery to my patients. My nurse practitioners are especially adept at handling the needs of youth with their contraceptive needs, etc. 

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.

As a primary care clinician, I have the opportunity to develop a trusting partnership with my patients and their families to help them live a healthy lifestyle. I enjoy diagnosing and treating the various illnesses that affect patients during their lifetime, and take great pleasure in seeing them recover. It is important for me to listen carefully to my patients' concerns so we can work together to meet their individual healthcare needs.  

In my free time, I enjoy swimming, running, cycling, and skiing, in addition to spending time with my husband, adult children, and our new granddaughter.