Non-NHI contracted medical institutions can also access the NHI information virtual private network (VPN) through Chunghwa Telecom (either wired or wireless). Non-NHI contracted medical institutions must apply to a regional office of the National Health Insurance Administration to gain access to the system. After logging in to obtain proper authorization, a user only needed to input the patient’s national identity card or Alien Resident Certificate number to determine whether a patient had traveled to COVID-19 affected areas or had contact with infected patients.