UnitedHealth says it is facing DOJ investigation over Medicare billing practices

Regulatory Scrutiny - UnitedHealth Group shares are falling due to a DOJ investigation into its Medicaid practices, involving both civil and criminal charges [1] - The company proactively informed the DOJ about the issues, following reports from sources like the Wall Street Journal [1] - UnitedHealth has launched an internal audit of its Medicare practices and PBM unit [1] - An internal report regarding the audit is expected to be ready by the third quarter [2] - In a separate case last March, a special master recommended against the DOJ's fraud billing case [2] Company Response - UnitedHealth is confident in its ability to address the charges [2]