THREE PHARMACY-BENEFIT MANAGERS - CVS Health, Express Scripts and UnitedHealthcare - control more than 70 percent of the market, including more than half of the $138 billion specialty drug prescription market.
NEW YORK – Over 20 years, Brian Komoto built a thriving pharmacy in California’s Central Valley. Each day, his nurses would travel the vast agricultural region’s roads to help hepatitis C patients take a grueling regimen of shots. Then, in 2016, 20 percent of Komoto’s business vanished, practically overnight. The insurer Centene Corp. purchased the…