Children’s Hospital of Philadelphia (CHOP) was founded in 1855 by Francis West Lewis, MD. After visiting the Great Ormond Street Hospital for Sick Children in London, Dr. Lewis decided to create the first hospital in the United States dedicated to finding cures and treating illnesses and injuries specific to children. He persuaded two friends – T. Hewson Bache, MD, and R.A.F. Penrose, MD –  to join him in the venture.

In the Hospital’s first year, it had 12 beds and a dispensary. Physicians served 67 inpatients and 306 clinic patients. Today, Children’s Hospital has 564 beds and more than 1 million outpatient visits and inpatient admissions each year.

The Hospital has also moved three times since first opening its doors in downtown Philadelphia. Today, it is located next to the University of Pennsylvania and its physicians serve as the pediatrics department of the Perelman School of Medicine at the University of Pennsylvania.

CHOP has been ranked as the best children’s hospital in the United States by U.S. News & World Report and Parents Magazine in recent years. As of 2020, it was ranked number one in the nation by U.S. News for three out of ten specialties. The hospital treats infants, children, teens, and young adults aged 0–21. The hospital also treats adults that would benefit from advanced pediatric care.

According to en.Wikipedia and chop.edu