INTRODUCTION: NOWADAYS SERVICE QUALITY AND CUSTOMER SATISFACTION HAS BECOME ONE OF THE MOST POPULAR MANAGERIAL DIMENSIONS AND CUSTOMER CENTRALIZATION CHANGED TO BE THE FIRST STRATEGY IN SERVICE ORGANIZATIONS. QUALITY MEASUREMENT AND MANAGEMENT HAS CHANGED TO BE ONE OF THE MOST IMPORTANT TOPICS IN HEALTH CARE TODAY. THIS STUDY AIMS TO ANALYZE SERVICE QUALITY THROUGH IMPORTANCE-PERFORMANCE ANALYSIS TOOL IN SELECTED HOSPITALS.METHODS: THIS IS A DESCRIPTIVE, CROSS-SECTIONALSTUDY PERFORMED IN YAFTABAD HOSPITALS DURING A SPECIFIC PERIOD. THE SAMPLE OF THE STUDY CONSISTS OF 101 INPATIENT PERSONSELECTED BY RANDOM SAMPLING METHOD. THE MAIN INSTRUMENT WAS A QUESTIONNAIRE CONSISTS OF TWO PARTS “IMPORTANCE” AND “PERFORMANCE”. ANALYZING SERVICES QUALITY IS PERFORMED IN 8 DIMENSIONS ACCORDING TO IPA RULES AND DESCRIPTIVE STATISTICSBY USING SPSS 17.0 AND EXCEL FOR WINDOWS. ...