NMU

BCBS Prefix NMU

Blue Cross Blue Shield of Tennessee

Tennessee • PPO, Medicare Advantage, Traditional Indemnity

Billing essentials

Provider phone
(800) 924-7141
Electronic payer ID
53767
Claims mailing address
1 Cameron Hill Circle, 3G2, Chattanooga, TN 37402
Timely filing limit
450 daysCompare all plans
Prior authorization phone
(800) 924-7141

Coverage under prefix NMU

PPO

PPO coverage under this prefix means the member can access any provider. In-network providers have negotiated rates with the plan, while out-of-network providers are reimbursed based on usual and customary charges. Prior authorization is generally not required for routine services but may be needed for high-cost procedures.

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.

Traditional Indemnity

Under this indemnity prefix, the member has fee-for-service coverage. There is no provider network, no referral requirement, and no primary care physician gatekeeper. Claims are processed based on the plan's fee schedule. While less common than managed care plans, indemnity coverage is still offered by some BCBS companies.

About Blue Cross Blue Shield of Tennessee

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