What’s My Member ID Number?

Your member ID number (also known as your account number) identifies you as a covered member of Blue Cross and Blue Shield of Illinois. It’s very important because it will be how you access your benefits when you need care. Think of it like your credit card—you need it to access your account to make purchases. Your member ID number connects you to your information in our systems, and is what providers use to make sure you are covered for a treatment or medicine when you seek care.
Where can you find your member ID number?
You can find your member ID number on your member ID card, which should arrive in the mail shortly after you sign up for one of our plans. If you’re a current member and your plan doesn’t change, you won’t get a new card, so the card you currently have will still work.

Your ID number is different from your group number, which may also be listed on your card. The sample card below shows where you might find your ID number. Keep in mind that this is only a sample card, and your card may look different.

Member ID number BCBS
Your member ID number will also be listed on your welcome letter. If you haven’t received your ID card yet, you can use the ID number and group number from your welcome letter to log into Blue Access for MembersSM (BAM) to print a temporary ID card.

What will you need your member ID number for?
Take your member ID card (with your ID number on it) when you seek care, so that your doctor has your insurance information. Without it, you may be wrongly billed for treatment or services. You’ll also need your ID number when you call Customer Service or pay your bill.

Your ID number is also the key that gets you into Blue Access for Members, your online resource for managing your health care coverage. There you can:

If you’re a member, but haven’t signed up for BAM yet, sign up today.

Will your ID number ever change?
In some cases your ID number will change. For instance, if you switch health insurance plans during open enrollment. However, your number should stay the same if your plan doesn’t change. If you’re not sure of whether or not your ID number has changed, call Customer Service at the number listed on your ID card.

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