Ann & Robert H. Lurie Children's Hospital of Chicago Health Information Management 1144 Wilmette Ave 225 E Chicago Ave, Box 11 Chicago, IL 60611 Hahn Pediatric Group Fax: 312-227-9733 Email: ROI@Luriechildrens.org Fax: 708 Northwestern Children's Practice Oak Park, IL 60302 680 N Lake Shore Dr, Suite 1050 Ignacio Omengan, MD Chicago, IL 60611.