50 Most Influential Physician Executives – 2018

As chief medical officer of the newly merged Advocate Aurora Health, Sacks will oversee 3,300 employed and 4,800 aligned physicians. The health system that runs from the Chicago area into Wisconsin cares for nearly 3 million patients. At Advocate, Sacks oversaw the health system's accountable care organization, which generated $60.6 million in savings in 2016.