The request is still pending due to: We are unable to process your request because, according to the provider enrollment information on file with your local Medicare Administrative Contractor (MAC), the local MAC PTAN entered into this tool is a group PTAN. A group PTAN will be assigned when we receive a PTAN request for a group member. If you believe you have received this message in error, please contact your local A/B MAC to validate the accuracy of the provider information you have entered into this tool.  You can locate contact information for your local A/B MAC on the CMS MAC Website List page at https://www.cms.gov/Medicare/Medicare-Contracting/FFSProvCustSvcGen/MAC-Website-List.  Reference Number:	21145000195 