Dr. Litchfield requests assistance conducting a needs assessment for hearing services in a five-county area. The assessment should consider population demographics from the National Institute on Deafness and Other Communication Disorders, analyze hearing-related data in Timberline Health's electronic records, and design a 5-10 question screening questionnaire to identify community needs for hearing services in primary clinics, following best practices for effective questionnaires. Other factors influencing hearing service needs should also be examined.