The Ministry of Health and Welfare has delegated the task of running
the National Health Insurance (NHI) to two quasi-public organizations—
the National Health Insurance Service (NHIS) and the Health Insurance
Review and Assessment Service (HIRA)—while retaining indirect control
over it. Under a single-payer health insurance system, it has become
feasible to collect utilization data of the entire population. HIRA has made
efforts to improve the quality of health services by providing both health
providers and consumers with feedback and information generated
from the claims database. Purchasing decisions on health services to be
included in the NHI benefit package are centralized