Guam EHDI Audiologist Conducts Orientation for Northern Regional Community Health Center Staff by Jenika Ballesta On February 23, 2018, Renee Koffend, AuD., CCC-A, Guam EHDI Audiology Consultant, conducted an orientation on the Guam Early Hearing Detection and Intervention program for the clinic staff based at the Department of Public Health & Social Services Northern Regional Community Health Center Community Services: Technical Assistance Community Services: Training Continuing Education Guam Early Hearing Detection & Intervention