The initiating party must provide notice on the appropriate government form to Ermer & Suter, PLLC, within 30 business days of the receipt of initial payment or notice of denial of payment for the item or service. Specifically, the initiating party may initiate the open negotiation period by sending an open negotiation notice to the other party by mail. Our mailing address is P.O. Box 34602 Washington DC, 20043 The initiating party also may send the notice electronically to us at SAMBAIDR@ermerlaw.com or by fax to 1-202-833-2027. If you have questions for us, please call 1-202-627-3100.