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Call UnitedHealthcare: FED TFN / TTY 711 Hours: 8 a.m. to 8 p.m., 7 days a week.
Call UnitedHealthcare: MEDSUPP TFN / TTY 711
Hours: 7 a.m. to 11 p.m. ET Monday through Friday, 9 a.m. to 5 p.m. ET Saturday.