Big name in health care Crossword Clue

 The answer to the crossword clue "Big name in health care" is Aetna. 

Aetna is a health insurance company headquartered in Hartford, Connecticut. It is one of the largest health insurance companies in the United States, with over 30 million members. Aetna offers a variety of health insurance plans, including health maintenance organizations (HMOs), preferred provider organizations (PPOs), and point-of-service (POS) plans.

Aetna was founded in 1853 as the Connecticut Mutual Life Insurance Company. It began offering health insurance in the early 1900s. In 2016, Aetna was acquired by CVS Health.

Aetna is a major player in the health insurance industry. It is known for its innovative products and services, and its commitment to providing quality care to its members.