WZX

BCBS Prefix WZX

Wellmark Blue Cross and Blue Shield

South Dakota/Iowa • Medicare Advantage, EPO, Traditional Indemnity

Billing essentials

Provider phone
(800) 552-3993
Electronic payer ID
88848
Claims mailing address
P.O. Box 14509, Des Moines, IA 50306-3509
Timely filing limit
180 daysCompare all plans
Prior authorization phone
(800) 552-3993
Provider website
https://www.wellmark.com

Coverage under prefix WZX

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.

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.

Traditional Indemnity

This is a traditional indemnity prefix. Unlike managed care plans (HMO, PPO, EPO), indemnity plans do not use provider networks. There are no referral requirements and no restrictions on which providers the member can see. Submit claims to the payer listed above for reimbursement at the plan's allowed rate.

About Wellmark Blue Cross and Blue Shield

Health insurance company serving Iowa and South Dakota with commercial and other plans.