REQUIRE MY DOCTOR: WHERE'S MY CLIENT ID?

I got my bill from the doctor and it says I need a client ID to make payment. Problem is, I haven't find mine anywhere! I've checked the paperwork from my appointment but it's not there. What should I attempt? How can I obtain my client ID so I can pay this bill? Maybe they mailed it to me? I should check all email and junk folders. Perhaps that's

Okay, so you’re trying to Handle your medical bill online, and you hit a snag. Your doctor's website is asking for your Account Info, but you have absolutely no clue what that even Is. It's like they're speaking A foreign language! Don't Panic – this happens more often than you think. Here are a few things you can do to Locate your missing ID