How do I file appeal with aetna for timely filing?

To file a timely filing appeal with Aetna, gather all relevant documentation, including the original claim, denial notice, and any supporting evidence. Complete Aetna's appeal form, which can usually be found on their website or through your provider portal. Submit your appeal along with the required documents via the method specified by Aetna (mail, fax, or online submission). Ensure you do this within the specified timeframe to meet their timely filing requirements.