The Harvard/CNN analysis found that the 5% doctors who prescribed opioids at a volume which was higher than that of the average physician were paid twice as much money from manufacturers. Likewise, doctors in the top 1% were paid four times as much. For the top 10th of 1 percent, that number increased nine-fold. To put this in perspective, roughly 54% of doctors who wrote prescriptions to Medicare patients, which numbers more than 200,000, received payment from pharma companies which manufacture opioids.