50 Most Influential Clinical Executives - 2020

After serving a few months as interim president and CEO, Ryu officially took over the top spot at the Danville, Pa.-based integrated delivery system in June 2019. Among his stated goals: build on Geisinger's programs related to home care, DNA sequencing, social determinants, primary care and digital health. While he was chief medical officer, Ryu revamped the health system’s primary-care operations, which aimed to free up clinicians to allow them to spend more time with patients.