This study aims to determine how service quality can have an influence on customer satisfaction at hospital X Tangerang. The benefit of this research is to be able to build and provide even better services and be able to increase customer confidence to return for treatment at hospital X Tangerang. This study uses a questionnaire as a method of collecting data on respondents' perceptions. And for the analysis technique used quantitative analysis. The results of this study indicate that there is an influence between Service Quality (X) on Customer Satisfaction (Y) with a determination coefficient of 75.5%.