This research discovers the notion of organizational climate and the aforementioned effects on service quality in private health segment. With increasing competition, production quality and qualified products/services in all sectors have become increasingly important, meeting customer demands and expectations in order to achieve competitive advantage and unfulfilled customer needs discovery have come to the fore. With the introduction of health services in the private sector as well as public institutions, the concepts of quality service and customer (patient) satisfaction have gained importance in health sector. Organizations that want to improve the quality of service should first focus on the human factor they have. The satisfaction and perceived quality of service obtained from the service provided in the service sector, including the health sector, depends on the satisfaction and motivation of the providers of this service. In the health sector, where the tolerance of errors is very low, the risk of infecting employees and the intense stress associated with the work are very severe. Data for the research were gathered by survey method from 181 staff members who are employed in private clinics and healthcare facilities, i.e. hospitals that are positioned in the city of Istanbul. Attained data was analysed using IBM SPSS 16.0 and as an outcome of the research determination was that the influences of the scopes of organizational climate over quality of service were not at the identical alignment. There was a noteworthy association among concord amongst staff members and quality eminence of service. Besides, organizational ethics were also determined to have substantial effects on eminence of service. On the contrary, further scopes of organizational climate, for instance managerial support, administration's aptitude & reliability and capacity did not have noteworthy association with eminence of service.