It is part of the Upper Allegheny Health System, and is located at 515 Main Street, Olean, NY. OGH is part of Upper Allegheny Health System (UAHS). UAHS provides care to a service area with more than 160,000 individuals in Southwestern New York and Northwestern Pennsylvania. The Olean General Hospital campus consists of the hospital and three additional buildings. The main hospital, located at 515 Main Street in Olean, consists of 186 inpatient beds and comprehensive ancillary and support programs and services.