Wellmark Blue Cross and Blue Shield and its subsidiaries provide health coverage to more than 2 million members in Iowa and S ... outh Dakota. And through the Blue Cross Blue Shield Association, Wellmark is part of a trusted national network that insures more than 100 million people. That's nearly 1/3 of all Americans. Wellmark offers flexible benefit designs, competitive prices, and a large selection of providers. Nearly all physicians and hospitals in Iowa and South Dakota participate with Wellmark, and the Blue Cross and Blue Shield Association provides extensive national and international coverage. *Wellmark Blue Cross and Blue Shield is An Independent Licensee of the Blue Cross and Blue Shield Association serving Iowa and South Dakota. read more