Dr. Zetoony is a physician in the Sleep Center at Johns Hopkins All Children’s Hospital. She earned her doctorate of osteopathic medicine from the Philadelphia College of Osteopathic Medicine. She completed an internship and a residency in internal medicine at Northside Hospital and the Tampa Bay Heart Institute in St. Petersburg, Florida. She then completed a fellowship in pulmonary and critical care medicine at Botsford General Hospital in Farmington Hills, Michigan, and a fellowship in sleep medicine at the University of Medicine & Dentistry of New Jersey.