Contacts
Clearinghouse, Switch, or Value-Added Network (VAN)
Vendor
For transmission problems, call your switch, VAN or
clearinghouse vendor:
Healtheon/WebMD switching services:
1-800-433-4893
Envoy switching services:
1-800-333-6869
National Data Corporation switching services:
1-800-388-2316
QSI Data Systems switching services:
1-864-503-9455, ext. 7837 |
