I’m not sure that would even be necessary. The NIA is part of the MOI, and I get the impression from some recent contact I’ve had with them that there’s more of an overlap between the two than you might expect when it comes to foreigners.
(Specifically, the Ministry of the Interior’s response to my discrimination complaint arrived in an envelope covered with NIA stamps and with an xxx@immigration.gov.tw e-mail address listed as the contact, as did one of the parts of @Mataiou’s complaint to the Control Yuan, and every time I submitted messages to the MOI through the MOI website the MOI forwarded them to the NIA for handling, who passed the responses back to the MOI to send to me. I thought it was odd at the time, considering that my messages were about an administrative appeal “upwards” to the Executive Yuan not “downwards” to the NIA, but they don’t appear to be acting as completely separate entities when it comes to foreigner stuff.)