The waiting time for inpatient registration is an important indicator of hospital service quality that can influence patients' perceptions and loyalty, particularly among insured patients. Preliminary data from Petala Bumi Regional General Hospital, Riau Province, showed a decline in patient visits from 4,432 in 2024 to 2,800 in 2025, accompanied by complaints regarding the lengthy insurance verification process during registration. This study aimed to determine the effect of inpatient registration waiting time on patient loyalty at Petala Bumi Regional General Hospital, Riau Province.This study employed a quantitative method with a descriptive analytic approach and a cross-sectional design. A total of 97 respondents were selected from a population of 2,800 patients using the Slovin formula and accidental sampling technique. Data were collected through questionnaires and hospital documents, then analyzed using univariate analysis, Pearson product-moment correlation, and simple linear regression.The results showed a significant relationship between inpatient registration waiting time and patient loyalty (r = 0.605; p = 0.000). The reliability dimension had the strongest correlation (r = 0.567), followed by tangibles (r = 0.553), responsiveness (r = 0.546), and assurance (r = 0.501). Waiting time contributed 36.56% to patient loyalty.In conclusion, better management of inpatient registration waiting time is associated with higher loyalty among insured patients. Hospitals are recommended to improve registration facilities, conduct regular staff audits, provide sops through QR codes, and enhance staff communication and empathy
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