Abstract: This study aimed to evaluate the quality of health services in health centers based on the perception and expectations of the Baharestan City service users and informing policymakers of the strengths and weaknesses of the quality of primary health care services from the consumers’ point of view is the starting point to improve the quality of services. This study is cross-sectional in 2015 on 500 people between consumers’ health centers, City Health Center of Baharestan City were selected by random sampling. Data were collected using a questionnaire developed by servqual means that the quality gap in five services was not measured. The data using spss software and statistical methods were analyzed. Overall, there are five dimensions of service quality and gap (beyond expectations, perceptions), respectively. In sum, based on scores from the difference between the perceptions and expectations (the quality gap) observed that 24.65% of respondents considered their service offerings than expected, 31.26% of the quality of services in health centers considered their expectations and 44.09% of the quality of services in health centers was their lower than expected. The results showed that after service reliability (ability to provide correct and timely service) is the most important issue facing the Baharestan City. Expectations of service users in relation to this aspect of service are high. The next meeting of the point of view of consumers’ confidence in service to factors such as health services at the first referral, correct maintenance and accurate records and files and service delivery at the appointed time and commitment depends. Tool Service Quality (SERVQUAL) can serve health centers in important dimensions and areas in need of reform help the recipients of services.