100 Most Influential People in Healthcare – 2018

Shafer became chairman and CEO of the board at the technology giant in February. He filled the void left by longtime CEO Neal Patterson, who died in 2017. Shafer joined Cerner from Philips North America, where he had been CEO since February 2014. As the head of Cerner, he'll not only compete head-to-head with the likes of Epic but must now lead the massive retooling of the VA's electronic health record system, not to mention its ongoing work with the Defense Department.