Abstract

Background Fragmentation in health insurance system may lead to inequity in financial access to and utilization of health care services. One possible option to overcome this challenge is merging the existing health insurance funds together. This article aims to review and compare the experience of South Korea, Turkey, Thailand and Indonesia regarding merging their health insurance funds. Methods This was a cross-country comparative study. The countries of the study were selected purposefully based on the availability of data to review their experience regarding merging health insurance funds. To find the most relevant documents about the subject, different sources of information including books, scientific papers, dissertations, reports, and policy documents were studied. Research databases including PubMed, Scopus, Google Scholar, Science Direct and ProQuest were used to find relevant articles. Documents released by international organizations such as WHO and World Bank were analyzed as well. The content of documents was analyzed using a data-driven conventional content analysis approach and all details regarding the subject were extracted. The extracted information was reviewed by all authors several times and nine themes emerged. Results The findings show that improving equity in health financing and access to health care services among different groups of population was one of the main triggers to merge health insurance funds. Resistance by groups enjoying better benefit package and concerns of workers and employers about increasing the contribution rates were among challenges ahead of merging health insurance funds. Improving equity in the health care financing; reducing inequity in access to and utilization of health care services; boosting risk pooling; reducing administrative costs; higher chance to control total health care expenditures; and enhancing strategic purchasing were the main advantages of merging health insurance funds. The experience of these countries also emphasizes that political commitment and experiencing a reliable economic growth to enhance benefit package and support the single national insurance scheme financially after merging are required to facilitate implementation of merging health insurance funds. Conclusions Other contributing health reforms should be implemented simultaneously or sequentially in both supply side and demand side of the health system if merging is going to pave the way reaching universal health coverage.