West Virginia doctor investigated for deaths in opioid epidemic

On Wednesday, dozens of medical nonprofit groups pleaded with hospital regulators to tighten national rules for prescribing painkillers. America has an opioid epidemic, and West Virginia is ground zero.

Doctors there write 138 prescriptions for every 100 people. Now, the state has launched a crackdown. Seven doctors have lost their licenses and 15 more are being investigated. CBS News sat down with one of them.
Meet Dr. Michael Kostenko. He’s written more than 40,000 prescriptions for oxycodone in the last two years.
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