Incorrect Fax Number The fax number on the AARP Medicare Supplement Plan Change Request Form (4PC) released Nov. 10, 2025, was incorrect. Use the updated form and fax to 1-248-524-5763. Forms sent to the old number will still process but may be delayed.
Monday - Friday | 7am – 9pm CST 12/24/2025 - 8am - 5pm CST Christmas Eve 12/25/2025 - Closed Christmas Day 12/31/2025 - 7am - 9pm New Years Eve 1/1/2026 - Closed New Years Day
Monday - Friday | 7am – 9pm CST 12/24/2025 - 8am - 5pm CST Christmas Eve 12/25/2025 - Closed Christmas Day 12/31/2025 - 7am - 9pm New Years Eve 1/1/2026 - Closed New Years Day