100 Most Influential People in Healthcare – 2016

• Years on list: 2

A passionate proponent of enhancing the patient experience, Feinberg has made it his primary focus at the Danville, Pa.-based system. At the top spot since 2015, Feinberg spearheaded ProvenExperience, a program that allows patients to request a refund if they are unsatisfied with their care delivery experience. The 12-hospital system has also expanded under Feinberg's leadership. Geisinger acquired several hospitals and admissions increased 17.2% year over year. A psychiatrist, Feinberg previously served as CEO of the UCLA Health System and vice chancellor of UCLA Health Sciences.