Greg Adams

As chair and CEO of Kaiser Permanente, Greg Adams oversaw plenty of change in the last year. In the spring, Kaiser announced plans to acquire Geisinger — what STAT’s Bob Herman called “the biggest proposed health care acquisition in recent memory” — with the goal of creating a national nonprofit health system, Risant Health, which will in turn make five to six additional health system acquisitions over the next few years. (The deal is now under regulatory review.) The fall, meanwhile, brought another momentous event: the resolution of contract negotiations between Kaiser and a coalition of its union members, following a three-day walkout of more than 75,000 workers, the largest health care strike in U.S. history.