The objectives of this research are 1) to identify different motivation of choice for each National University hospitals 2) to examine the factors influencing the patients` satisfaction, 3) and to investigate that the patients` satisfaction effects the hospital re-choice and recommendation on seven National University`s hospitals. The data for this analysis were collected by questionnaire survey. Totally 852 interviews were conducted. The major statistical methods used for the analysis are paired t-test, factor analysis, χ2-test, and multiple regression. We find that satisfaction level is a function of not only the quality of medical service but also non-medical service. The main results of research are follows : 1) The most important factor of hospital choices is `the trust and fame as National University hospitals` : 2) Overall satisfaction of inpatients is turned to be influenced by the doctor`s services, nurse`s services, environment, and convenience. And overall satisfaction of outpatients is also found to be influenced by the waiting time for lab test : 3) Highly satisfied patients preferred to revisit and to recommend to others.