John Bardis, chairman and CEO of MedAssets, resigned last week over family health issues, the company announced.
Bardis, who founded the publicly traded group purchasing and revenue-cycle management company in 1999, will stay on as a consultant. He built Alpharetta, Ga.-based MedAssets into one of the largest healthcare GPOs and oversaw the company's diversification into other areas, such as revenue-cycle services, for its hospital and health system clients.
Halsey Wise, a MedAssets board member since March 2014, has been named chairman and CEO. Wise previously was CEO of Lime Barrel Advisors, a private investment firm he founded in 2010.