W7K

BCBS Prefix W7K

Anthem Blue Cross and Blue Shield of Wisconsin

Wisconsin • HMO, Medicare Advantage, EPO

Billing essentials

Provider phone
(855) 558-1443
Electronic payer ID
00246
Claims mailing address
P.O. Box 105557, Atlanta, GA 30348-5557
Timely filing limit
90 daysCompare all plans
Prior authorization phone
(855) 558-1443

Coverage under prefix W7K

HMO

This prefix is linked to an HMO plan. Health Maintenance Organization coverage requires members to use in-network providers and coordinate care through a designated primary care physician. Referrals are typically required for specialist visits. Claims submitted without proper referral documentation may be denied.

Medicare Advantage

This prefix includes Medicare Advantage coverage. MA plans follow CMS guidelines for timely filing (365 days from date of service), which may differ from the commercial plan's deadline. The payer ID for Medicare Advantage claims may differ from the standard commercial payer ID. Verify before submitting.

EPO

This prefix is associated with an EPO plan. Exclusive Provider Organization coverage combines elements of HMO and PPO plans: members must stay in-network like an HMO, but can self-refer to specialists like a PPO. Out-of-network services are not covered except for emergencies.

About Anthem Blue Cross and Blue Shield of Wisconsin

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