Michael K. Butler, a former chief executive of Louisiana's charity hospitals, has started work as chief medical officer of Miami-based Jackson Health System, replacing Gerard Kaiser, 77, who retired as leader of the system's doctors for more than 20 years. With more than 20 years of healthcare administration experience, Butler, 54, served as head of Louisiana state's Health Care Services Division from 2007 to 2009, overseeing seven hospitals, including Charity in New Orleans, and 7,200 employees.
