Background and Objective: One of the main factors for the maintenance of each organization which leads to increasing its productivity is having organizational cultural consistency. Thus the purpose of this research was to study organizational culture of medical centers.

Materials and Methods: In this descriptive-survey study, research population was all faculty members in Arak University of Medical Sciences that 176 people were selected using Cochran Formulate and stratified random sampling. Data was collected using organizational culture questionnaire with 42 items in four components (intellectual, development, consensus and hierarchical) in terms of Likert scale. Content and constructive validity of the questionnaire were confirmed and its reliability coefficient was calculated (0.84) using Cronbach Alpha. Data analysis was done through descriptive and inferential statistics by SPSS18 and Amos Graphic statistical software.

Results: Findings showed that mean score of organizational culture in Arak University of Medical Sciences in intellectual component (3.4±0.57), development (3.33±0.56) and consensus (3.27±0.62) were higher than the average and hierarchical mean score (2.69±0.63) was lower than the average. Also there is no significant difference between faculty members' point of view on organizational culture in terms of gender, field of study, scientific rank, employment status and years of service.

Conclusion: Faculty members believed that organizational culture was higher than intellectual, culture of development and consensus which in turn have more emphasis on innovation and development, risk-taking, efficiency and effectiveness and less emphasis on formalization, centralization, and rule and stability.