Some CareSource customers could see their rates drop by 9 percent if the change is approved. But others may see as much as a 12 percent increase.
Most of the companies planning to offer coverage in Indiana through the federal exchange are proposing double-digit rate increases for individual premiums.
Those covered under the Healthy Indiana Plan will receive coverage four more months because of troubles with enrollment under the federal exchanges.
Officials are hoping Hoosiers won't get discouraged and not sign up for insurance after a rocky start that included a frozen website and online error messages.
State legislators have decided not to create a statewide healthcare exchange but are considering a Medicaid expansion.