What If I Have a Complaint About My Medicare Plan?

You can always call us with a question, concern or complaint about your plan.

But for some situations, Blue Cross Blue Shield of Michigan has a formal complaint process. When you contact us with your complaint, it's also called filing a grievance.

Complaint guidelines

  • You have 60 days to tell us after a problem occurs.
  • You can't have your plan canceled for contacting us with a complaint.
  • Your complaint will always be handled fairly and investigated following Medicare rules.

What's considered a complaint?

We can help you with concerns about:

  • Quality of care
  • Your right to privacy
  • Poor customer service
  • Long wait times for appointments
  • Information you get from us
  • How long we take to respond to a coverage decision or appeal

You can find more information about complaints in your plan's Evidence of Coverage.

How to file a complaint

The best way to start is by calling the customer service number on the back of your member ID card. We try to resolve the problem the first time we hear from you. 

Medicare Plus BlueSM PPO plans

You can reach us by phone:

1-877-241-2583
TTY users call 711
8 a.m. to 8 p.m. ET
Monday through Friday

Or, you can mail or fax your complaint to:

Grievance and Appeals Department
Blue Cross Blue Shield of Michigan
P.O. Box 2627
Detroit, MI 48231-2627

Fax: 1-877-348-2251

BCN AdvantageSM HMO and HMO-POS plans

You can reach us by phone:

1-800-450-3680
TTY users call 711
8 a.m. to 8 p.m. ET
Monday through Friday

Or, you can mail or fax your complaint:

Appeals and Grievance Unit
Blue Care Network
P.O. Box 44200
Detroit, MI 48244-0191

Fax: 1-888-458-0716

If those options aren't convenient for you, you can also complete our medical online callback form. Then we’ll get in touch at the best time for you.

Prescription BlueSM PDP and Medicare Plus BlueSM PPO plans

You can reach us by phone:

1-877-241-2583
TTY users call 711
8 a.m. to 8 p.m. ET
Monday through Friday

Or, you can mail or fax your complaint to:

Clinical Pharmacy Help Desk — Mail Code 1610
Blue Cross Blue Shield of Michigan
P.O. Box 32877
Detroit, MI 48232-1127

Fax: 1-866-601-4428

If those options aren't convenient for you, you can also complete our prescription online callback form. Then we’ll get in touch at the best time for you.

BCN AdvantageSM HMO and HMO-POS plans

You can call us at:

1-800-450-3680
TTY users call 711
8 a.m. to 8 p.m. ET
Monday through Friday

Or, you can mail or fax your complaint to:

Clinical Pharmacy Help Desk — Mail Code 1610
Blue Cross Blue Shield of Michigan
P.O. Box 32877
Detroit, MI 48232-1127

Fax: 1-866-522-7345

If those options aren't convenient for you, you can also complete our prescription online callback form. Then we’ll get in touch at the best time for you.

Need to contact Medicare directly?

You can contact Medicare directly about a complaint by using this form.

Still need help?

We're just a phone call away.

Contact us

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  • Page Last Updated Fri Jan 03 15:14:41 EST 2025