Forms If your claim has been denied and you require us to file an appeal on your behalf, please select your plan below and complete the corresponding form. Aetna Cigna Humana United Aetna Humana Cigna United Aetna Cigna Humana United Once completed, please mail the form to the address below: SWF Anesthesia P.O. Box 733926 Dallas, TX 75373-3926