Cigna temporarily banned from new Medicare plans

"Cigna has had a longstanding history of non-compliance with CMS requirements," the agency said. "Cigna has received numerous notices of non-compliance, warning letters, and corrective action plans from CMS over the past several years. A number of these notices were for the same violations discovered during the audit, demonstrating that Cigna has not corrected issues of non-compliance."
http://www.usatoday.com/story/money/2016/01/22/cigna-medicare-sanctions/79160738/