Abstract: In general, the problem that is often faced by the hospital is that the hospital has not been able to provide services that match the expectations of service users. Marketing mix is a set of tools that a hospital can use to shape the characteristics of services offered to customers (patients). The purpose of this study is to determine the effect of marketing mix on the interest of re-visit national health insurance patients in Polyclinic at Hospital X. This study used 75 respondents as polyclinic patients in Hospital X registered as national health insurance participants who are considered quite representative of the population studied. The sampling technique used a random sampling method on each polyclinic taken proportionately.