National Health Insurance Act Article 68

With regard to the medical benefit provided by this Insurance, unless provided otherwise by this Act, the contracted medical care institutions shall not make up items to charge a beneficiary.
中文原文 全民健康保險法第68條
保險醫事服務機構對本保險所提供之醫療給付,除本法另有規定外,不得自立名目向保險對象收取費用。

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