路透1月12日 - 《华尔街日报》周一援引美国参议院一个调查该公司做法的委员会的话报导称，医疗保险公司联合健康集团（UnitedHealth Group UNH.N）采用激进手段收集诊断结果，以提高医疗保险优势计划（Medicare Advantage）的支付额。
该公司股价在盘前交易中下跌 1.4%，至 339.42 美元。
据《华尔街日报》报导，参议院的报告没有提出正式建议，也没有指控 UnitedHealth 有不当行为。
该公司没有立即回应路透的置评请求。
(为便利非英文母语者，路透将其报导自动化翻译为数种其他语言。由于自动化翻译可能有误，或未能包含所需语境，路透不保证自动化翻译文本的准确性，仅是为了便利读者而提供自动化翻译。对于因为使用自动化翻译功能而造成的任何损害或损失，路透不承担任何责任。)
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