Home > Find A Doctor Find A Doctor Search for a physician or surgeon with privileges at Passavant Area Hospital below. For healthcare providers: Online Provider Verification Stephen Y. Chen, D.O. Interventional Cardiology / Cardiology Springfield Clinic Jacksonville 15 Founders LaneJacksonville, IL 62650 Springfield Clinic 800 N. 1st St.Springfield, IL 62702 Phone Number: (217) 528-7541 Fax: (217) 527-2853 Website: http://springfieldclinic.com Back to Care Providers