UnitedHealthcare’s IBM Retiree Call Center

Find the right resource to contact with your questions.

Already enrolled and have questions?

Call 1-877-852-0641, 8a.m. – 8 p.m., Local Time Mon - Fri. TTY users, call 711. Contact information can also be found on your member ID card or on the back cover of the Plan Guide.


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.

Learn more about fraud and abuse


File appeals and grievances

See what steps you need to take and download the process form for your plan.

Medical appeals and grievances

Prescription drug appeals and grievances

You can provide feedback directly to Medicare about your Medicare health or prescription drug plan.

Questions? We're here to help. Find the right resources to contact with your questions.

Contact us

(1-877-852-0641) 8 a.m. – 8 p.m., Local Time Mon - Fri. TTY users, call 711.

Frequently asked questions

If any conflict should arise between the content of this communication (including accompanying material) and the legal Plan documents, or if any point is not discussed in this communication or is only partially discussed, the terms of the legal Plan documents (as interpreted by the plan administrator) will govern in all cases. As always, IBM reserves the right, in its sole discretion, to amend and/or terminate the Plan and any of IBM’s other benefit plans.