Physician Photo

Ari Rishon (Ari) Cohen, MD

Chief, Division of Pediatric Emergency Medicine

Dr. Ari R. Cohen M.D., is an attending physician at the Emergency Medicine Department of Massachusetts General Hospital.

  • Phone: 617-726-7622
Department of Emergency Medicine
Department of Pediatrics


  • MassGeneral Hospital for Children
  • Emergency Medicine
Clinical Interests
Pediatric Respiratory illness
Pediatric Head Trauma
Boston: Massachusetts General Hospital
Medical Education
MD, University of Chicago Pritzker School of Medicine
Residency, Mount Sinai Hospital Medical Center
Fellowship, Children's Hospital Boston
Board Certifications
Pediatrics, American Board of Pediatrics
Pediatric Emergency Medicine, American Board of Emergency Medicine
Patient Age Group
Accepting New Patients


Dr. Ari Cohen M.D., is an attending physician in the division of Pediatric Emergency Medicine at Massachusetts General Hospital. He graduated from University of Chicago, Pritzker School of Medicine. He then completed his pediatric residency at Mount Sinai Hospital in New York. Dr. Cohen completed a fellowship in pediatric emergency at Boston Children's Hospital. Dr. Cohen is currently an instructor of pediatric medicine at Harvard Medical School.

Dr. Cohen currently focuses on emergency department operations and efficiency, specifically on the administrative and clinical management of the pediatric ED. Dr. Cohen assists in the development of clinical programs, procures new equipment, and acts as the liaison to the Department of Pediatrics. He has led the division effectively for 4 years. Under his lead, the EM pediatric division has matured and excelled. Dr. Cohen has overseen the pediatric ED's efforts to expand its educational role and outreach into the community and surrounding hospitals. He is involved with the construction of the new pediatric treatment area within the MGH ED.

Dr. Cohen has active research interests in both respiratory illness and head trauma and continues to investigate these subjects.

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

Phone: 617-726-7622
Fax: 617-724-0917