Introductions: Evaluation is considered as an integrated and administrative activity, because using measurable information is followed by improvement in administrative activities. Given the importance of hospitals evaluations this research is aimed and carried out to determining current methods for public and private Tehran's hospitals evaluation methods from chief executives points of views and headquarter. Methods: This is a descriptive cross sectional study by research community including 70 persons 35 hospitals' chief executives including heads, managers, matrons of hospitals and 35 ministry of Health authorities and headquarters' experts and Tehran county located universities health chancellors working on hospitals evaluations. The mean collecting information tools were a valid and reliable questionnaire and interviews and documented reviews. The collected data using EPI INFO and SPSS software processed and by t-test and X² tests analyzed and presented by descriptive and analytic statistics.

Results: Ten percent (7 persons) were agreed with composition, timing, and scoring methods for current evaluations. Twenty percent (14 persons) believed that current evaluations would result improvement in efficiency and effectiveness of hospitals performances and 22.9% (16 persons) believed that current evaluations would achieved Ministry of Health targets. Twenty percent (14 persons) agreed to joining public and private hospital evaluation forms and 18.6% believed that evaluation methods would be effective for establish medical tariffs.

Conclusion: Generally public hospitals and authorizes, headquarters experts of Ministry of Health and health chancellors of Tehran's medical sciences universities did not agree with current hospital evaluations method, and willing to change evaluations methods and presenting a proper paradigm.