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

Okay, right, I need to cover my doctor's bill. I visited the website and it says I need a account number. But, I don't have that! What am I supposed to try? Is there a way to access my client ID? Help me figure this out. It's really frustrating having to pause payment because of this. Veradigm and Pay My Doctor: How to Use It Navigating healthca