Healthcare is the fastest growing service in both developed and developing countries[1]. To illustrate, Thailand healthcareexpenditures in 1980totaled 25,315 million baht and rose to 298,459 million baht in 2000[2] Thus this increase appears to beimpressive, healthcare expenditures as a percentage of the gross domesticproduct (GDP) have been increased from 3.82 percent to 6.10percent from 88to . Due to growth of an aging population, healthcare is one of the fastest growing sections in the Thailand service economy. Quality in health care is currently at the forefont of professional managerial attention, primary because it is being seen as a means for achieving increase loyalty, competitive advantage. As Kilbourne et al. [3] and Otani [4] has emphasized, quality will be the main driving force as healthcare organizations strive to meet the competitive challenges of the future. The issue of service quality has received considerable attention in marketing literature. As a result, understandably the delivery of higher levels of service quality is the strategy that increasingly be offered as a key