Todd Ostendorf. CFO of Children's Hospitals and Clinics of Minnesota (Minneapolis). Mr. Ostendorf has more than 25 years of experience in finance leadership. He was appointed CFO of Children's Hospitals and Clinics of Minnesota in 2016. Previously, he was CFO of Robbinsdale, Minn.-based North Memorial Health Care and led two subsidiaries within Minnetonka, Minn.-based UnitedHealth Group as CFO.