Insurance companies and health providers naturally hold different interests — they act as a check and balance system between the cost and quality of health care. While their respective missions to increase affordability and deliver the best possible patient outcomes may seem oppositional, both parties are discovering how to be more effective by working together. No one knows this better than Karen Ignagni, who leads America's Health Insurance Plans (AHIP), a trade association that represents the insurance industry. The key to a successful payer-provider collaboration? Big data.