IAZ

BCBS Prefix IAZ

Wellmark Blue Cross and Blue Shield

South Dakota/Iowa • Medicare Advantage, EPO, HMO

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 IAZ

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

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.

HMO

HMO (Health Maintenance Organization) plans require members to choose a primary care physician (PCP) and obtain referrals before seeing specialists. Out-of-network services are generally not covered except in emergencies. Claims must be submitted to the payer listed above and should include referral authorization when applicable.

About Wellmark Blue Cross and Blue Shield

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