Transformations in Argentine immigration and healthcare policy have collided to create a dynamic landscape of public health utilization in Buenos Aires. This study presents empirically grounded analysis of healthcare utilization in the wake of these policy changes by examining the spatial distribution of 841 patients receiving obstetric services at Hospital Rivadavia in 2009. Analysis carried out at both the individual level and aggregated by partido
reveals patterns in both the relative utilization of public healthcare services by migrants compared to native Argentines as well as the spatial distribution of patients, and in particular, migrant patients. The results of this study suggest that utilization of public obstetric services at Hospital Rivadavia by migrants is significantly higher than that of native Argentines and finds the distribution of migrant patients to be spatially clustered. These results have important implications for future immigration policy and healthcare provision at municipal, national, and international scales.