Any organization that was required to make a firewall change in order to access the Gentran server (gis.cms.hhs.gov) is advised to contact the MAPD Help Desk for important configuration information. The configuration change must be implemented in order to access Gentran once the MDCN on AT&T switches to Verizon Business Networx Services (VBNS) on June 30, 2011.
Please direct questions or concerns to the MAPD Help Desk at mapdhelp@cms.hhs.gov or 1-800-927-8069.