Aim. The aim of this study was to determine the factors influencing patient evaluation of the health services which can be incorporated in feasible proposals for the application of marketing policies. Method. The research was conducted in May-September 2007 in two hospitals, one in Athens and in one in a provincial region. Data were collected using a structured questionnaire, specially designed to be clear to the health service users. Selection of participants was based on the method of multiple stage random sampling, and the sample consisted of 217 patients. Results. Satisfaction with the health services was rated at a mean of 6.9 points by the Athens patients and 6.1 points by those in the provincial area, on a 10 point scale. Linear regression analysis revealed a significant degree of interdependence among six specific factors that were examined as independent variables, and their correlation with satisfaction (R2=0.527, P=0.001, F=29.68). Concerning the level of interdependence, the most powerful dependence was related to the evaluation of particular services (B=1.49, t=11.5) and the expected rating of services evaluation (B=0.17, t=2.49). Conclusions. The users of the health services in the provincial hospital consistently indicated lower levels of satisfaction, but also higher expectations. Conversely, in the Athens hospital, the users appeared to be more rationally informed about the services that they expected to receive. It can be concluded that the way in which the services are provided to the users (i.e., the management facilitations), which shapes the end product that is offered to health services users, influences to a considerable degree their opinion and their final satisfaction with the services provided.