Size PPO HDHP HMO/EPO Group Size 48.9% Small Which Health Plans 30.6% 1-50 Employees Do Hoosiers Pick? 13.4% In Indiana, while all groups prefer HDHPs, the larger 52.2% 43.1% Mid-Size the group, the more prevalent these plans are. 51-500 Employees Small businesses in the state have considerable 3.3% interest in HMO/EPO plans. 69.7% Large 500+ Employees 26.9% 3.4%