TRICARE Open Season Time for TRICARE Open Season! Compare plans and keep or change your current coverage. If you’re eligible, you may enroll in dental and vision coverage during Federal Benefits Open Season. Changes you make during this time will take effect on Jan. 1, 2026. TRICARE Open Season runs from Nov. 10–Dec. 9, 2025. Federal Benefits Open Season runs from Nov. 10–Dec. 8, 2025.
Mike O'Callaghan Military Medical Center is committed to providing all of our patients with high-quality care.
Our level III trauma center is the first Air Force medical facility to treat civilian critical care and trauma patients arriving by ambulance.
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Mike O'Callaghan Military Medical Center News and Updates

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