FRUSTRATED PAY MY DOCTOR: WHERE'S MY CLIENT ID?

Okay, so, I need to pay my doctor's bill. I went the website and it says I need a patient code. However, I don't have that! What am I supposed to try? Is there a way to retrieve my client ID? Please figure this out. It's really annoying having to halt payment because of this. Using Veradigm & Pay My Doctor Navigating healthcare expenses can be a