Wellmark offers health insurance services in Iowa and South Dakota, providing a variety of plans for individuals, families, and employers, including Medicare Advantage options. The company collects premiums from its members to cover medical claims and operational costs, while also offering additional services like health trend analysis for employers. Wellmark stands out from competitors with its commitment to customer satisfaction and inclusivity, as demonstrated by its perfect score in the Corporate Equality Index. The goal of Wellmark is to be a leading health insurance provider, adapting to market needs and ensuring comprehensive healthcare coverage for its members.