Which of the following is a managed care entity in Indiana?

Anthem is recognized as a managed care entity in Indiana due to its operational model, which focuses on coordinating care and providing a range of health services within a network of healthcare providers. As a major health insurance provider, Anthem utilizes care management practices to improve patient outcomes while controlling costs. Managed care entities like Anthem negotiate costs and services with healthcare providers and implement strategies that streamline patient care, resulting in a more integrated healthcare experience.

Blue Cross Blue Shield, Cigna, and Aetna also provide health insurance services and may operate in various managed care capacities, but Anthem is specifically known for its strong presence and structured managed care models within the Indiana market. This distinguishes Anthem as the correct answer in the context of this question.