Cleveland Clinic is a nonprofit American academic medical center based in Cleveland, Ohio. Owned and operated by the Cleveland Clinic Foundation, an Ohio nonprofit corporation established in 1921, it runs a 170-acre (69 ha) campus in Cleveland, as well as 11 affiliated hospitals, 19 family health centers in Northeast Ohio, and hospitals in Florida and Nevada. International operations include the Cleveland Clinic Abu Dhabi hospital in the United Arab Emirates and Cleveland Clinic Canada, which has two executive health and sports medicine clinics in Toronto. Another hospital campus in the United Kingdom, Cleveland Clinic London, opened to outpatients in 2021 and fully opened in 2022. Tomislav Mihaljevic is the president and CEO. Cleveland Clinic is consistently ranked as one of the best hospitals in the United States. In 2018–2019, the U.S. News & World Report ranked Cleveland Clinic as the number 2 hospital in the Best Hospitals Honor Roll, as it was nationally ranked in 14 adult and 10 pediatric specialties. Cleveland Clinic conducts its pediatric operations through the Cleveland Clinic Children's Hospital. Cleveland Clinic's cardiology program has ranked No. 1 in the nation since 1995. Cleveland Clinic's operating revenue in 2017 was $8.4 billion and its operating income $330 million. That year it recorded 7.6 million patient visits and 229,132 admissions. As of 2019, it has over 67,500 employees, a figure that includes over 17,000 registered nurses and advanced practice providers and over 4,520 physicians and scientists in 140 specialties. It is affiliated with Case Western Reserve University School of Medicine, with which it started a physician-investigator medical training program: the Cleveland Clinic Lerner College of Medicine. Cleveland Clinic is also the teaching hospital for Ohio University Heritage College of Osteopathic Medicine and Kent State University College of Podiatric Medicine. In addition, Cleveland Clinic has 1,974 residents and fellows in 104 training programs approved by the Accreditation Council for Graduate Medical Education (ACGME). The Cleveland Clinic publishes the peer-reviewed journal Cleveland Clinic Journal of Medicine. The Cleveland Clinic Foundation is the third largest doctors group in the United States with 15,330 medical professionals as of September 1, 2022. History Beginnings The organization grew out of the surgical practice of Frank J. Weed (died 1891) at 16 Church Street on the near-west side of Cleveland. The practice was purchased by his two assistants, Frank E. Bunts and George Washington Crile. In 1892 they were joined by Crile's cousin, William E.