Regulations Governing the National Health Insurance Dispute Mediation Article 3

The beneficiary, the group insurance applicant, the premium withholder, and the contracted medical care institution shall be the applicants of the applications for mediation.The group insurance applicant shall put forward the applications referred to in the preceding paragraph at the request of the subordinate beneficiary.
中文原文 全民健康保險爭議事項審議辦法第3條
審議之申請,以保險對象、投保單位、扣費義務人及保險醫事服務機構為申請人。
投保單位得依其所屬保險對象之請求,代為辦理前項申請。

English translation for reference only; the Chinese text prevails. Not legal advice.