Find the right resource to contact with your questions.
If you have not yet enrolled in a plan, or do not know your group number, contact Customer Service at one of the numbers noted below based on your expected plan type.
UnitedHealthcare® Group Medicare Advantage
For benefits and plan administration questions, please call 1-800-457-8506, 8 a.m. - 8 p.m. local time, Monday through Friday. TTY users, please call 711.
UnitedHealthcare® Senior Supplement
Plan materials for Senior Supplement enrollees are not yet available for download. Please contact Customer Service for more information at 1-800-851-3802, 8 a.m. - 8 p.m. local time, Monday through Friday. TTY users, call 711.
UnitedHealthcare® MedicareRx for Groups (PDP)
For benefits and plan administration questions, please call 1-888-556-6648, 8 a.m. - 8 p.m. local time, Monday through Friday. TTY users, call 711
Report fraud and abuse
If you think you've been a victim of identity theft or fraud, call any of these numbers:
- Call toll-free 1-800-MEDICARE (1-800-633-4227). TTY, call toll-free 1-877-486-2048, 24 hours a day, 7 days a week.
- The Fraud Hotline of the HHS Office of Inspector General, toll-free at 1-800-HHS-TIPS (1-800-447-8477). TTY, call toll-free 1-800-377-4950. You can also email HHSTips@oig.hhs.gov.
- The Federal Trade Commission's ID Theft Hotline toll-free at 1-877-438-4338 to make a report. TTY users, call toll-free 1-866-653-4261.
File appeals and grievances
See what steps you need to take and download the process form for your plan.
Learn more about filing appeals and grievances »
You can provide feedback directly to Medicare about your Medicare health or prescription drug plan.