Dr. Renee Koffend Speaks to GEIS about Hearing Loss Identification & Rehabilitation by Guam CEDDERS Renee L.G. Koffend, Aud., CCC-A, Guam CEDDERS/ GEHDI consultant (standing at right),spoke before a captive audience of service providers from the Guam Early Intervention System (GEIS) on August 17, 2016 at the GSAT Center. Dr. Koffend’s presentation focused on “Hearing Loss Identification & Rehabilitation.” Community Services: Training Guam Early Hearing Detection & Intervention