Since the implementation of the Medical Care Network program in 1985, the supply of hospital facilities in disadvantaged medical regions has substantially increased and the geographic distribution of hospital beds in Taiwan has been improved. This study aims to examine changes in access to inpatient care as measured by the proportion of cross-region admissions for the last decade. It was hypothesized that the proportion of cross-region admissions has decreased following the improvement in the supply and geographic distribution of hospital beds. The data for the analysis came from Hospital Discharge Surveys, Demographic Fact Books, and other governmental publications. The results of this study showed that: (1) Between 1985 and 1995 regional differentials in the proportion of cross-region admissions in terms of coefficient of variation have increased from 50.0% to 57.9% though the national proportion of cross-region admissions has slightly decreased from 19.9% to 17.9%; (2) For each study year the proporti on of cross-region admissions was weakly associated with population density but strongly associated with the supply of hospital beds; (3) After controlling the number of regional hospitals and medical centers in a region, the proportion of cross-region admissions had little to do with population density and supply of hospital beds; and (4) Change in the proportion of cross-region admissions was negatively and weakly associated with increasing population density and increasing supply of hospital beds. This study thus concludes that the important role of regional hospitals and medical centers should be well taken into account in order to improve geographic access to hospital care in the future.