Perry Memorial Hospital joins OSF HealthCare Jul 2, 2021 | Hospitals, Top Stories The former Perry Memorial Hospital in Princeton has formally joined OSF HealthCare, becoming the 15th hospital in the Peoria-based health system.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.