The present study was conducted to investigate the level of satisfaction of the insured with the performance of the agencies and counter offices of the South Khorasan Health Insurance General Administration, the contracting party. This study is survey-analytical in terms of its purpose, application, and the method used in this study. It was conducted as a single-section study. This study was conducted on 350 clients of the contracting party government counter office of the South Khorasan Health Insurance General Administration who were selected using a proportional cluster sampling method. The data collection tool in this study was the SERVQUAL quality standard questionnaire, which measures two areas of the insured's expectations and perceptions of service quality. The data from this study were analyzed in SPSS software. The present study's findings show that in all areas of the SERVQUAL questionnaire, quality was negative, and clients' perceptions of their expectations were significantly higher. In the area of ​​expectations, the best situation was observed in the area of ​​responsiveness and confidence, and the worst situation was observed in the dimension of empathy. In the area of ​​perceptions, the best situation was observed in the dimension of confidence and trust, and the worst situation was observed in the dimension of empathy. Overall, the counter offices studied appeared to exceed the expectations of the community receiving the service. Despite this, in the two dimensions of specific matters and responsiveness, the expectations and perceptions of the clients were the same. It is necessary to improve the current situation by improving the items related to the two dimensions of tangible matters and responsiveness.