4. Cigna Insurance

With over 30 years of experience in this business, Cigna Insurance offers a wide range of health care packages and it has a huge setup. They offer services of around 500,000 physicians and cover around 8000 hospitals. The scale of their work is much greater than many of its competitors. The lowest plan offered by them is at $0 per month and the most expensive plan is at $ 426 per month. Critics believe that if you are single then Cigna is the way for you because their individual plans are far better than their collective plans.