Question: Montana Subscriber Answer: When your payer denies your claim because you missed a timely filing deadline, you typically don't have much recourse. But when the patient failed to give you her insurance in the proper timeframe, you don't have to simply write off those charges. You should instead try to bill the patient. Here's how: If you can prove to the payer that the patient did not provide you with her insurance information in a timely manner, you may be able to convince the payer to allow you to make the payment the patient's responsibility. Tip: Send a letter to your payer and include a printout from your system that shows the insurance information and when the patient gave it to your office. In the letter,ask the payer to rescind its denial based on timely filing and instead deny the claim as the patient's responsibility because the patient failed to provide insurance information. Keep in mind: