. . . Midwest Medical Insurance Holding Company and Subsidiaries (Parent Company) Exhibit 21--Subsidiaries of the Registrant <Table> <Caption> PERCENT STATE OF ENTITY DESCRIPTION OWNED FEIN INCORPORATION - ----------------------------------------------- -------------------- -------- ------------ ------------------- Midwest Medical Insurance Holding Company Registrant n/a 41-1625287 Minnesota Midwest Medical Insurance Company Tier 1 Subsidiary 100% 41-1625288 Minnesota Midwest Medical Solutions, Inc. Tier 1 Subsidiary 100% 41-1896304 Minnesota MMIC Benefits, Inc. Tier 1 Subsidiary 100% 41-1819825 Minnesota MMIC Business Office Solutions, Inc. Tier 2 Subsidiary 100% 41-2019520 Minnesota </Table>