PURPOSE: assess the adequacy of a questionnaire, which is in the implementation phase, elaborated by the Municipal Department of Health of São Paulo regarding the hearing health service and the use of hearing aids. METHODS: the questionnaire consists of 17 questions that assess the service and user's satisfaction. The assessment of the service comprises the medical care in general, waiting time for the hearing aid, and the return(s) after receiving it. User's satisfaction assesses the period of time when the hearing aid is used during the day and at what times in the patient's life its use has brought improvement. It was applied for 17 subjects, ages 21 to 91 years, mean age: 61.8 years. Eleven were male. RESULTS: the indicator for service assessment suggests pondering over testing with more than one device. The indicator for satisfaction suggests the need to modify the score regarding the period of time the device is used and, regarding the improvement in certain places, it is necessary to add the place where the device is being used. CONCLUSION: it is necessary to reformulate and reevaluate the submitted questionnaire. Despite its limitation due to the small number o studied f individuals, it was found that the respondents were relatively satisfied, although there are complaints as for the adaptability to the hearing aid.