PAY MY DOCTOR: WHERE'S MY CLIENT ID?

Ugh, I have to to pay my doctor's bill but their system is giving me a fit! It keeps asking for a client ID and I have no idea where to find it. Did anyone else run into this? I've checked my email, statements, and even looked through old paperwork, but nothing! Is there a secret location for these IDs or am I just missing something obvious? Pleas

Okay, so, I need to pay my doctor's invoice. I logged in the portal and it says I need a client ID. But, I can't that! What am I supposed to do? Is there a way to find my client ID? Please figure this out. It's really annoying having to stop payment because of this. Using Veradigm & Pay My Doctor Navigating healthcare expenses can be a difficult