Quality of hospital care has been an increasing concern in Vietnam, especially in the overloaded situation at public hospitals in the whole country. Identifying related factors that influence the quality of hospital care is a critical work to improve the hospital performance and patient satisfaction. SERVPERF scale has been considered as a superior instrument for evaluating service quality, including in health care sector. Two public hospitals in Khanh Hoa province, Vietnam have been chosen to assess the application of a modified SERVPERF scale, namely Patient Satisfaction Scale (PSS), to evaluate the quality of care. Multidimensionality of the hospital care quality has been analysed using exploratory factor analysis with further examination of the scale’s reliability and validity. Exploratory Factor Analysis resulted in five factors with pretty good internal consistency coefficients. Cronbach’s alpha for the whole scale is high, at.880. Further regression analysis showed a significant convergent validity of the scale in terms of examining the association of overall service quality with the whole PSS. Assurance and Empathy are the most dimensions affecting the service quality of hospital care.