Out-of-network Appeal Letter
![Out-of-network Appeal Letter Medical letter appeal out of network](https://blanker.org/files/styles/thumbnail/public/images/out-of-network-appeal-letter.png?itok=GklzgDac)
An out-of-network appeal letter is a formal written request made by a patient or their healthcare provider to an insurance company. The purpose of the letter is to challenge a denial or reduction of coverage for medical services received from a healthcare provider who is not part of the insurance company's established network.