Johnson names new commissioner for Chicago Department of Public Health Nov 13, 2023 | Public Health, Top Stories Chicago Mayor Brandon Johnson said Monday he has chosen Dr. Olusimbo “Simbo” Ige as the next commissioner for 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.