The East Suburban Health Center opened in spring of 1978, with 257 beds, serving much of eastern Allegheny County and parts of Westmoreland and Armstrong Counties. In 1983, health system leaders changed the hospital's name to the Forbes Regional Health Center, and in 1996, the Forbes Health Care system entered into a merger with the Allegheny Health, Education and Research Foundation (AHERF), which was then the parent company of Allegheny General Hospital. Canonsburg Hospital and Allegheny Valley Hospital also became members of AHERF and its Pittsburgh area hospital-management arm, Allegheny University Medical Center. Following AHERF's collapse and bankruptcy filing, in 2000, Forbes Regional joined the newly created West Penn Allegheny Health System, and in 2013 became part of Allegheny Health Network.