Healthcare is the fastest growing service in both developed and developing countries [1]. To illustrate, Thailand healthcare expenditures in 1980 totaled 25,315 million baht and rose to 298,459 million baht in 2000[2] Thus this increase appears to be impressive, healthcare expenditures as a percentage of the gross domestic product (GDP) have been increased from 3.82 percent to 6.10 percent from 1988 to 2000. 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 forefront 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