This study examined patient perceptions of service quality at dr. Charles P.J. Suoth Lanud Sam Ratulangi Hospital using the Importance Performance Analysis (IPA) method integrated with Servqual. A qualitative descriptive research design was employed, involving 38 inpatients selected through double sampling. Five service quality dimensions were evaluated: Tangibles, Reliability, Responsiveness, Safety, and Empathy. Servqual analysis revealed that negative gap values predominated across 19 of 27 attributes, with the Empathy dimension recording the largest mean gap (−0.25). IPA quadrant mapping identified six attributes requiring immediate improvement, four to be maintained, five of low priority, and twelve exceeding patient expectations. Improvement strategies are recommended in three domains: physical facility expansion, staff communication training, and service timeliness enforcement. The findings underscore the centrality of interpersonal dimensions—particularly Empathy and Responsiveness—in shaping overall patient satisfaction in military hospital settings.