TRYING TO PAY MY DOCTOR: WHERE'S MY CLIENT ID?

So, I'm attempting to pay my statement, and it says I need a client ID. Here's the catch: I can't find it anywhere! Searched everywhere online. Did my doctor's office send it to me? Do they have a separate portal? Any ideas on how to this client ID would be super useful. Getting into Veradigm Pay My Doctor for Payment Complications Are you runn