Wellmark Blue Cross and Blue Shield

Identity

Canonical name

Wellmark Blue Cross and Blue Shield

Also known as

Wellmark · Wellmark Advantage Health Plan · Wellmark Health Plan of Iowa · Wellmark of South Dakota

Formerly known as

No recorded former names

Parent company

Independent

Plan type

Blue Cross Blue Shield plans

Names matter on an application. A plan is frequently listed under a brand name that differs from the contracting entity, and a rename or acquisition can leave both names circulating for years. Filing under the wrong one is a common cause of rejected or misrouted applications.

Credentialing details

Provider portal

Availity

CAQH ProView

Required — profile must be complete and attested

States covered

2 of 51

Lines of business

Commercial · Medicare Advantage · Marketplace

Blue Cross Blue Shield is a federation of independent licensees. Each plan credentials on its own — being in-network with one Blue plan does not make you in-network with another.

Coverage by state

Lines of business are contracted per state. Being credentialed for one line in one state does not carry over to another. Data as of July 28, 2026.

Sources

• CCIIO Plan Attributes PUF — retrieved July 28, 2026
• CMS MA Contract Service Area by State/County — retrieved July 28, 2026
• White Glove curated entity table — retrieved July 28, 2026

We name provider portals but do not link to payer websites — payer URLs move, and a stale link is worse than none. We verify current requirements directly with the payer at the start of every engagement.