G5K

BCBS Prefix G5K

Blue Cross Blue Shield of Texas

Texas • EPO, Medicare Advantage, HMO

Billing essentials

Provider phone
(800) 451-0287
Electronic payer ID
00246
Claims mailing address
P.O. Box 660044, Dallas, TX 75266-0044
Timely filing limit
180 daysCompare all plans
Prior authorization phone
(800) 451-0287

Coverage under prefix G5K

EPO

EPO coverage under this prefix means the member must use network providers but does not need referrals for specialist visits. This plan type is becoming more common as it offers lower premiums than PPO plans while providing more flexibility than HMOs. Verify network status before providing services.

Medicare Advantage

Medicare Advantage coverage under this prefix means the plan administers Medicare Part A and Part B benefits on behalf of CMS. These claims may have different processing rules than commercial claims, including different prior authorization requirements and appeal timelines. CMS timely filing rules (365 days) typically apply.

HMO

HMO coverage means this member must use providers within the plan's network. A primary care physician serves as the care coordinator and must authorize specialist referrals. Emergency services are the primary exception to the network requirement. Always verify referral status before providing non-emergency specialty care.

About Blue Cross Blue Shield of Texas

Independent licensee providing commercial, Medicare and Medicaid plans to Texas members.