Tax Identification Number. Also called a TIN. You must have a Tax Identification
Number (TIN) to register for myCGS. CGS Administrators LLC cannot release patient
or provider specific information if you do not identify yourself with your TIN. It
is referred to as the Tax ID on the registration page of myCGS. If you do not know
your Tax ID, check with your administrative office or refer to your tax records.
The amount of your last check received from Medicare. If there are several payments
received on one date, use the amount associated with the largest check number. Call
the IVR to verify your last payment received. You must call the IVR related to your
line of business. IVR telephone numbers are listed in the
Contact Us page.