ABSTRACT Knowlegde sharing, leader member change, organizational citizenship behaviour to hospitals performance. Data were collected using purposive sampling and questionnaires as the research instrument from 100professionals employee of hospitals in Tangerang. This study used Partial Least Square (PLS) to analyze the data. The results showed that Knowlegde Sharing has a positive effect on hospitals performance. Leader member change has a positive effect on hospitals performance, organizational citizenship behaviour has a positive effect on hospitals performance.