CareFirst BlueCross BlueShield members will receive new medical identification cards effective January 1, 2026. Use your current card through December 31, 2025. Start using the new card on January 1, 2026 and please destroy the old card. Members can check the ID number to tell them apart. The old ID starts with an 8 and the new ID starts with a 9. Show your new card at all medical appointments starting in 2026 to avoid claim issues. Contact CareFirst Member Services if you have not received your new ID card by December 31, 2025, or if you have any questions about your new medical ID card call 1.888.417.8385