What do I do if I have a complaint or problem with my Medicare plan?
If you have a complaint or problem with your Medicare plan, you can contact the plan directly to try and resolve the issue. If that does not work, you can file a complaint with the Center for Medicare and Medicaid Services (CMS) by visiting the official Medicare website at www.medicare.gov or by calling 1-800-MEDICARE (1-800-633-4227).