The Department of Justice has launched an antitrust investigation into UnitedHealth Group, focusing on how the UnitedHealthcare insurance division influences its own Optum health-services arm, according to the Wall Street Journal. Optum’s portfolio includes physician groups and other providers, and the business line employs a total physician force of about 90,000, making it the largest physician employer in the country. The investigation is digging into how Optum’s acquisitions of physician groups impact competition, particularly in …
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