WNK

BCBS Prefix WNK

Arkansas Blue Cross and Blue Shield

Arkansas • Medicaid, EPO, Medicare Advantage

Billing essentials

Provider phone
(501) 378-2364
Electronic payer ID
00520
Claims mailing address
P.O. Box 2181, Little Rock, AR 72203
Timely filing limit
180 daysCompare all plans
Prior authorization phone
(800) 482-8416

Coverage under prefix WNK

Medicaid

This prefix is associated with Medicaid managed care. When a BCBS plan administers Medicaid, the claims process may differ from commercial coverage: different payer ID, different claims address, different prior authorization rules, and different timely filing limits. Always verify Medicaid-specific details before submitting.

EPO

This is an Exclusive Provider Organization (EPO) prefix. EPO plans do not cover out-of-network care except in genuine emergencies. Members can see any in-network specialist without a referral from their primary care physician. Claims for out-of-network non-emergency services will be denied.

Medicare Advantage

Under this prefix, the member may have Medicare Advantage coverage administered by this BCBS plan. MA claims are subject to CMS regulations in addition to the plan's own policies. Balance billing restrictions apply. Verify the member's specific MA plan details and confirm the correct payer ID for electronic submission.

About Arkansas Blue Cross and Blue Shield

Non-profit health insurance company providing coverage to Arkansas members with commercial and Medicaid plans. Member of the Blue Cross Blue Shield Association.