The main objective of the study was to assess the service quality dimensions that affectsrnpatient satisfaction and assess the level of patient satisfaction on service quality ofrnprivate wings setup of Ras Desta Damtew Memorial Hospital and Menilik II General andrnReferral Hospitals. To this purpose the researcher has studied the service quality of thernprivate wing service of the hospitals using SERVQUAL model. The research usesrnquantitative method with the nature of both descriptive and correlational andconveniencernsampling technique was used in the study to take a sample from the population. A totalrnsample of 190 who have taken a medical service in both Ras Desta Damtew MemorialrnHospital and Menilik II General and Referral Hospitals were taken as a respondent. Arnquestionnaire was designed based on the SERVQUAL model in order to examine all fivernfactors of service quality in the model and additional two factors namely waiting timernand price. The research uses a non probability sampling technique which is convenientrnsampling. The analysis result showsassurance has the highest mean value with 4.16rnvalueand reliability and empathy followed with 3.97 and 3.9 mean value respectively.rnThe independent variables reliability, responsiveness, empathy and waiting time hasrnstrong relationship among variables and tangibles and price has moderate relationshiprnand assurance has weak relationships among variables. With the result of regressionrnanalysis reliability, responsiveness, empathy, waiting time and price has impact onrncustomer satisfaction however assurance and tangibility has negative impact on thernpatient satisfaction with the negative value of -0.210 and -0.034. As a result thernresearcher hypothesis H1, H2, H3, H4, and H6 has accepted because it haspositivelyrnrelated and has a significant impact on patient satisfaction, however, H5 and H7 hasrnbeen rejected because even if it is positively related, it has no significant impact onrnpatient satisfaction.Finally researcher recommended that since responsiveness, tangiblesrnand waiting time dimensions has a lower mean value; hospitals shall improve the abovernareas to boost customer satisfaction