Blue Cross and Blue Shield of Montana is state's largest private health insurer, the company provides a variety of coverage types, including traditional indemnity policies, HMOs, POS plans, and supplemental Medicare plans, to about 235,000 customers. It also administers the state's Children's Health Insurance Program (CHIP) and participates in InsureMontana, a state-sponsored, subsidized program designed to encourage small businesses to cover their employees. The not-for-profit company's provider network includes about 1,900 physicians and all of the state's hospitals.