2024 Evidence of Coverage for UnitedHealthcare® Group Medicare Advantage PEBB Complete (PPO) Chapter 9: What to do if you have a problem or complaint (coverage decisions, appeals, complaints) 233 · You can make your complaint directly to the Quality Improvement Organization. · The Quality Improvement Organization is a group of practicing doctors and other health care experts paid by the Federal government to check and improve the care given to Medicare patients. Chapter 2 has contact information. Or · You can make your complaint to both the Quality Improvement Organization and us at the same time. Section 10.5 You can also tell Medicare about your complaint You can submit a complaint about UnitedHealthcare® Group Medicare Advantage PEBB Complete (PPO) directly to Medicare. To submit a complaint to Medicare, go to www.medicare.gov/ MedicareComplaintForm/home.aspx. You may also call 1-800-MEDICARE (1-800-633-4227). TTY/ TDD users can call 1-877-486-2048.