Geisinger Health System chief executive David T. Feinberg is leaving his post for a job at Google, the health system announced Thursday night.

The Wall Street Journal reported that Feinberg, who joined Geisinger in 2015 after leading UCLA Health System, will step into a new position at Google overseeing the tech giant's health care-efforts.

Geisinger, based in Danville, Pa., owns 13 hospitals, mostly in northeastern Pennsylvania, but also including two AtlantiCare Health System facilities in New Jersey. It also owns a health insurance plan that serves nearly 600,000. It had $6.3 billion in revenue in the year ended June 30, 2017.

At Geisinger, Feinberg was labeled a visionary who spearheaded numerous public health programs and oversaw the health system's 2017 acquisition of Commonwealth Medical College, now the Geisinger Commonwealth School of Medicine, in Scranton.

In 2016, Feinberg earned $3.6 million including a base salary of $1.8 million bonuses and other benefits, according to the most recent IRS documents available.

"It has been a great privilege to lead Geisinger during the past nearly four years," Feinberg said in the statement. "I look forward to following Geisinger's achievements in the years to come and will remain forever grateful to have had this tremendous opportunity."

Chief medical officer and executive vice president Jaewon Ryu will step up as interim president and CEO to lead more than 32,000 employees who care for 1.5 million patients in Eastern Pennsylvania and New Jersey.

Ryu's appointment begins Dec. 1. Feinberg will stay on until Jan. 3 to facilitate the transition before taking the leadership role at Google.