Audiologists have advanced degrees in Audiology. Interview several dispensers. Ask about their education, experience, services, and follow-up care. Make sure they offer products from a number of manufacturers so you have a wide choice of options. Check with state licensing boards, consumer protection agencies, or the Better Business Bureau for any unresolved complaints.
Most dispensers quote one price that includes many services, as well as the hearing aids.
However, be aware that some dispensers bill separately for testing, the hearing aids, and other services. Find out what the price you are quoted includes. Until you know which aid you will need, you won't be able to determine the complete price of purchasing and correctly fitting a hearing aid. This AARP publication is a comprehensive guide about hearing loss and hearing aids. This non-profit organization has lots of practical information for people with hearing loss.