Pritzker taps Cook County doctor to lead public health department Jan 31, 2019 | Top Stories Gov. J.B. Pritzker is appointing Dr. Ngozi Ezike to serve as director of the Department of Public Health.To access this content, you must purchase 1 Year Health News Illinois Subscription or 1 Year Group Subscription - Up to 5 Users, or log in if you are a member.