UPMC, a health care provider and insurer, completed the merger with Washington Health Care Services, a nonprofit organization that provides an integrated healthcare system centered around patients and families. Financial terms were not disclosed. “The Board and senior leadership of WHS have realized, that in today’s health care environment, we need to consider the long-term stability of our health system to continue to provide the quality health care services our local residents have come to expect,” Dan Miller, Washington Health Care Services Chairman.