Regulations for the National Health Insurance Reimbursement of the Self-advanced Medical Expenses Article 8

The Insurer shall determine whether to reimburse the medical expenses within three months from the date when it receives the application and inform the beneficiary or his or her legal agent of the result.The following periods may not be included in the calculation of the deadline set forth in the preceding paragraph.1. In the event that a beneficiary provides insufficient documents and is subsequently notified by the Insurer to provide supplementary documents: the period between the date of being notified by the Insurer and the date when the required supplementary documents are submitted;2. In the event that the Insurer needs to check the medical records kept by a contracted medical care institution due to the review of an application, the period between the date when the contracted medical care institution is notified to submit the medical records and the date when the medical records are submitted.
中文原文 全民健康保險自墊醫療費用核退辦法第8條
申請核退醫療費用之案件,保險人應於受理之日起三個月內完成核定,並將核定結果通知保險對象或其法定代理人。
下列期間,不予計入前項處理期限:
一、所附證件不齊,經保險人通知補件者:自通知補件之日起至補件送達之日止。
二、基於審核需要,經保險人向醫事服務機構調閱病歷者:自通知調閱之日起至病歷送達之日止。

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