Several diseases that at the household level become catastrophic are end stage renal diseases, cardiovascular, cancer, thalasemia, and haemphilia. Patients of those diseases are benefitted the most of the National Health Insruacen (JKN) and those diseases absorbed high claim costs of the JKN. Special attentions are needed to manage those diseases. Disparity of health care facilities, specialists, and differentials of Casemix Base Group (CBG) payment are susptected to be important contributing factors that create absosrbtion of JKN fund across provinces. This study use 2014 claim data of BPJS Kesehatan in Jakarta and East Nusa Tengga (NTT) provinces to explore the size of differences. The total number of claims analyzed was 309,301 claims. The results show statistically difference of claim payment per case, per admission, and per hospital day. The differences are atributable mostly by differentials of CBG prices that are not providing incentives for specialists to be deployed in smaller hospitals of class B, C, and D in low income provinces.This study does not prove transfer of JKN fund from NTT to Jakarta.