At some point this week you likely drove past - or walked past - a C-V-S. Eighty percent of American families live within 10 miles of one. The company sits at number eight on the Fortune 500 this year. But it’s primed to make a big jump. Last year, C-V-S Health acquired Aetna, the country’s third-largest insurance carrier. The seventy billion dollar deal made C-V-S the world’s largest publicly traded health care company.