Physician Photo

Sonia Lewin, MD

Sonia Lewin, M.D. is an attending physician in the Department of Pediatric Emergency Medicine at Massachusetts General Hospital. She is also an assistant professor at Harvard Medical School.

  • Phone: 617-724-3290
Department of Emergency Medicine
Department of Pediatrics


  • MassGeneral Hospital for Children
  • Emergency Medicine
Clinical Interests
Emergency pediatrics
Treatment of acute respiratory distress
Approach to the febrile infant and child
Medical education
Boston: Massachusetts General Hospital
Medical Education
MD, University of Massachusetts Medical School
Residency, Massachusetts General Hospital
Fellowship, Massachusetts General Hospital
Board Certifications
Pediatric Emergency Medicine, American Board of Emergency Medicine
Foreign Languages
Patient Age Group
Accepting New Patients
Accepting New Patients


Dr. Sonia Lewin is an attending physician in the Department Emergency Medicine at Massachusetts General Hospital. She graduated from the University of Massachusetts Medical School. After completing her internship and residency in pediatrics MGH, she completed a fellowship in pediatric emergency medicine. Dr. Lewin is assistant professor of pediatrics at Harvard Medical School.

Dr. Lewin's major academic commitment is to teaching, both in the clinical arena and through didactic lectures, with teaching settings ranging from patients' bedsides, to interactive skill-stations, core curricula lectures, and presentations at HMS/CME courses, American Academy of Pediatrics conventions and national grand rounds. She has also written chapters in two editions of Ambulatory Pediatric Care. Dr. Lewin is Co-Director of MGH Department of Pediatrics annual HMS/CME course; "Emergencies and Procedures in Pediatrics". She also teaches minor surgical workshops and "Everything You Always Wanted to Know about Pediatrics but Dared Not Ask," a talk she created to prepare moonlighters, not primarily trained in pediatrics, to care for children presenting with emergency conditions. She also was instrumental in establishing Child-Life Services in MGH ED. Dr. Lewin's area of expertise is the febrile infant and child. She teaches the age-based work-up of pediatric patients with fever.

Dr. Lewin's main interest is in the febrile infant.  She developed the Algorithm for the Evaluation of the Well-Appearing Febrile Child: An age-based chart detailing the differences in the evaluation and management of the febrile neonate (<29 days old) compared with the young infant (29 to 89 days old) and the 3-month to 2-year-old pediatric patient; Revision over the years reflects the availability of new vaccines and changes in the epidemiology of pathogens.

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Pediatric Emergency Services
55 Fruit Street
Boston, MA 02114-2696

Phone: 617-724-3290
Fax: 617-724-0917