Physicians should ensure that an assigned staff member is registered as a Noridian Medicare Portal (NMP) user if their office submitted redetermination and/or reopening requests for Level 1 Medicare Redetermination Notices (MRNs) through the online portal. Only fully favorable (payable) determinations will result in a Remittance Advice; any other MRN decision will be available only in the Appeal Status Inquiry feature in NMP and will not be mailed. For more information, go to the Noridian website at http://bit.ly/2upTM0G.