Allegheny Health Network (AHN), based in Pittsburgh, is a non-profit, 16-hospital academic medical system with facilities located in Western Pennsylvania and one hospital in Western New York. AHN was formed in 2013 when Highmark Inc., a Pennsylvania-based Blue Cross Blue Shield insurance carrier, purchased the assets of the West Penn Allegheny Health System and added three more hospitals to its provider division. Allegheny Health Network was formed to act as the parent company to the WPAHS hospitals and its affiliate hospitals. Highmark Health today serves as the ultimate parent of AHN.