Which health insurance company denies the most claims?

Which health insurance company denies the most claims?

In its most recent report from 2013, the association found Medicare most frequently denied claims, at 4.92 percent of the time; followed by Aetna, with a denial rate of 1.5 percent; United Healthcare, 1.18 percent; and Cigna, 0.54 percent. Nov 12, 2014

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