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Enrollment and meetings
From October 20 – December 5, 2025, AT&T retirees or eligible dependents can enroll in the 2026 AT&T-sponsored Group Medicare Plans online or by calling UnitedHealthcare
Telephonic Enrollment
Call UnitedHealthcare at 1-866-819-3448, 8 a.m. - 8 p.m. CT, Monday – Friday to enroll.
You’ll get a personal consultation to help you:
- Understand plan details
- Check what’s covered
- Compare costs and benefits
Already Enrolled
If you are currently enrolled in the AT&T-sponsored Group Medicare Advantage Plans, you don’t need to take any action. You will be automatically enrolled in the AT&T-sponsored Plans equivalent to the medical and prescription drug plan you have today.
If you decide you don’t want to be enrolled in the AT&T-sponsored Plans, you can click here https://uhgrem.my.site.com/OptOut to opt-out online (enter code ATTOptOut26) or call UnitedHealthcare October 20 to December 5 to decline the coverage for 2026.
You cannot opt-out of only the medical plan or only the prescription drug plan; you must be enrolled in both the medical plan and prescription drug plan to be eligible for AT&T-sponsored coverage.
Reminder! These are the only AT&T-sponsored plan options for 2026, and by declining coverage you may not be able to enroll in AT&T-sponsored coverage until the next annual enrollment period.
Online meetings
Date and time |
Attendee WebEx Link |
Event ID and Password |
Join by phone |
10/7/2025 11am - 1pm CT |
Click to join meeting | 2663 126 9236 Welcome2026! |
Join by phone 1-763-957-6400 US/Canada (Preferred) Access code: 2663 126 9236 |
10/9/2025 3pm - 5pm CT |
Click to join meeting | 2660 788 5931 Welcome2026! |
Join by phone 1-763-957-6400 US/Canada (Preferred) Access code: 2660 788 5931 |
10/11/2025 1pm - 3pm CT |
Click to join meeting | 2661 940 7550 Welcome2026! |
Join by phone 1-763-957-6400 US/Canada (Preferred) Access code: 2661 940 7550 |
10/14/2025 11am - 1pm CT |
Click to join meeting | 2663 443 5808 Welcome2026! |
Join by phone 1-763-957-6400 US/Canada (Preferred) Access code: 2663 443 5808 |
10/16/2025 3pm - 5pm CT |
Click to join meeting | 2660 408 9718 Welcome2026! |
Join by phone 1-763-957-6400 US/Canada (Preferred) Access code: 2660 408 9718 |
10/21/2025 11am - 1pm CT |
Click to join meeting | 2660 221 4769 Welcome2026! |
Join by phone 1-763-957-6400 US/Canada (Preferred) Access code: 2660 221 4769 |
10/23/2025 3pm - 5pm CT |
Click to join meeting | 2661 341 6722 Welcome2026! |
Join by phone 1-763-957-6400 US/Canada (Preferred) Access code: 2661 341 6722 |
10/28/2025 11am - 1pm CT |
Click to join meeting | 2662 399 1200 Welcome2026! |
Join by phone 1-763-957-6400 US/Canada (Preferred) Access code: 2662 399 1200 |
10/30/2025 3pm - 5pm CT |
Click to join meeting | 2660 494 4335 Welcome2026! |
Join by phone 1-763-957-6400 US/Canada (Preferred) Access code: 2660 494 4335 |
11/5/2025 1pm - 3pm CT |
Click to join meeting | 2664 916 7385 Welcome2026! |
Join by phone 1-763-957-6400 US/Canada (Preferred) Access code: 2664 916 7385 |
11/12/2025 1pm - 3pm CT |
Click to join meeting | 2663 507 8412 Welcome2026! |
Join by phone 1-763-957-6400 US/Canada (Preferred) Access code: 2663 507 8412 |
11/19/2025 1pm - 3pm CT |
Click to join meeting | 2664 338 1169 Welcome2026! |
Join by phone 1-763-957-6400 US/Canada (Preferred) Access code: 2664 338 1169 |
12/03/2025 1pm - 3pm CT |
Click to join meeting | 2660 182 8681 Welcome2026! |
Join by phone 1-763-957-6400 US/Canada (Preferred) Access code: 2660 182 8681 |
New to Medicare
If you are aging into Medicare in 2025, please review the current year benefits and contact member services for assistance.
Call UnitedHealthcare 1-866-819-3448, TTY 711, Monday – Friday 8am-8pm CT.
General Medicare Questions? New to Medicare Brochure (pdf)
Required information for enrollment
Medicare requires the following in order for you to be enrolled in the AT&T-sponsored Group Medicare Advantage Plans insured by UnitedHealthcare®.
- You must be entitled to Medicare Part A and enrolled in Medicare Part B.
- You must continue paying your Medicare Part B premium.
- You must have a permanent street address (this cannot be a P.O. Box).
- You must have your Medicare ID number.
- You must live within the 50 United States, the District of Columbia, or U.S. territories.
Need help or have questions?
For additional enrollment questions, call 1-866-819-3448, 8 a.m. - 8 p.m. CT, Monday – Friday. TTY users, call 711. Or, contact us.