Contact Us DuPage Health Coalition staff is available to answer questions or address concerns between 8am - 4pm, Monday through Friday. Our staff may also be available by phone after hours. Please note: We are closed for lunch from 12pm-1pm. Phone: 630-510-8720 Fax: 630-510-8707 Email: [email protected] DuPage Health Coalition511 Thornhill Drive, Suite CCarol Stream, IL 60188