Matthew Perrone has published an artilce on this topic through the Associated Press.
Congressional investigators said Wednesday two-thirds of the U.S. health insurance industry used a faulty database that overcharged patients for seeing doctors outside their insurance network, costing Americans billions of dollars in inflated medical bills.
The flawed database is operated by Ingenix, a subsidiary of health insurer UnitedHealth Group, which agreed in January to pay $350 million to settle allegations that it deliberately kept rates low to underpay doctors, driving up expenses for patients.