ZAX

BCBS Prefix ZAX

Independence Blue Cross

Pennsylvania • Medicare Advantage, POS, EPO

Billing essentials

Provider phone
(800) 275-2583
Electronic payer ID
54704
Claims mailing address
P.O. Box 21974, Eagan, MN 55121
Timely filing limit
365 daysCompare all plans
Prior authorization phone
(800) 275-2583

Coverage under prefix ZAX

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.

POS

This prefix is linked to a POS plan. Point of Service coverage gives members a choice at the time of service: use the HMO-style in-network benefit with a referral for lower costs, or access out-of-network providers at reduced coverage levels. The billing approach depends on which option the member chooses.

EPO

EPO (Exclusive Provider Organization) plans require members to use in-network providers, similar to an HMO. The key difference is that referrals are usually not required to see a specialist. Out-of-network care is not covered except in emergency situations. Submit claims to the payer listed above.

About Independence Blue Cross

Nonprofit health insurance company serving seven million members nationwide with strongest presence in Philadelphia area and Southeastern Pennsylvania. Member of the Blue Cross Blue Shield Association for over 85 years.