As a result, understandably the delivery of higher levels of service quality is the strategy that increasingly be offered as a key to healthcare managers position themselves more effectively in the marketplace[5-6]. However, several scholars have identified the problem inherent in the implementation of such strategy: service quality is an elusive and abstract construct that is difficult to define and measure [7]. Otani [8] suggested that the excellent service attributes influence on patient satisfaction and loyalty [9]. Therefore, the purpose of this paper is to develop and empirically test the service quality model of the healthcare in Thailand based on the SERVQUAL model. The paper was organized as follows, starting with the review literature on the exploration variables of the proposed model. The following section presented the conceptual model and defines the sets of research hypotheses. The study proceeds with a description of methods which are applied, including information about the data and statistical procedures. Results were presented and some of their implications and limitations were discussed in the final section.