OSAGE NATION SERVICE AREA (September 5, 2024) – Osage Nation’s Health Benefits Open Enrollment occurs from October 1, 2024, to December 15, 2024. During that time, Osage Nation members can enroll or re-enroll in the following: 2025 Osage Nation Limited Health Benefit Plan (64 years and younger) 2025 Osage Nation Limited Health Benefit Plan (65 years and older) 2025 Osage Rx Card (all ages) 2025