Blue Cross Blue Shield of Michigan
An independent licensee of the BCBS Association, Blue Cross Blue Shield of Michigan is a nonprofit mutual insurance company founded in 1939. It is the largest health insurer in the state, serving 4.5 million people in Michigan and 1.6 million more in other states. The largest network of doctors, more than 33,000; and the largest number of hospitals – 152, accept BCBSM plans.