<![CDATA[Abstract:The implementation of Electronic Medical Records (EMR) has become an essential component of digital transformation in healthcare services aimed at improving service productivity through effective health information management. This study aims to analyze the effects of EMR system stability, information quality, Information Technology (IT) technical support, and system efficiency on outpatient service productivity at Universitas Islam Indonesia Hospital, Yogyakarta. The study employed a quantitative approach with an explanatory research design and a cross-sectional approach, involving 113 respondents selected through probability sampling with a proportionate stratified random sampling technique based on the Slovin formula. Data were collected using a five-point Likert-scale questionnaire and analyzed using multiple linear regression with IBM SPSS Statistics version 26. The results show that EMR system stability (B = 0.216; t = 4.554; Sig. = 0.000), information quality (B = 0.333; t = 7.211; Sig. = 0.000), IT technical support (B = 0.219; t = 4.640; Sig. = 0.000), and system efficiency (B = 0.250; t = 5.477; Sig. = 0.000) each have a positive and significant effect on outpatient service productivity. Simultaneously, the four variables have a significant effect (F = 367.962; Sig. = 0.000) with an R Square value of 0.931, indicating that 93.1% of the variance in outpatient service productivity is explained by the four variables, while 6.9% is influenced by other factors outside the model. Information quality is the most dominant contributing variable. This study concludes that system stability, information quality, IT technical support, and system efficiency are important factors that need to be managed in an integrated manner to improve EMR-based outpatient service productivity. Keywords: Electronic Medical Record (EMR); Information Quality; Service Productivity; System Efficiency; T Technical Support. ]]>
