Indiana Code Title 27. Insurance § 27-8-11-13

(1) The provider submits the documentation required by the insurer to be loaded under the provider group or hospital.

(2) The provider, provider group, or hospital is a network provider with the insurer.

(3) The services are provided in accordance with all terms and conditions of the provider's, group provider's, or hospital's agreement or contract with the insurer.

(4) Prior authorization is obtained in accordance with IC 27-1-37.5 when required by the insurer for an eligible service.

(1) a provider is employed by a hospital that is part of the hospital's network that is covered by the insurer;  and

(2) the provider meets the insurer's credentialing requirements;