(November 10, 2015, 11:48 AM EST) -- HOUSTON — Because a medical center failed to provide specific proof of underpayment on medical health claims, a Texas federal judge on Oct. 29 dismissed the medical center’s claims against the health insurer (Kenneth Koenig, et al. v. Aetna Life Insurance Co., et al., No. 13-359, S.D. Texas; 2015 U.S. Dist. LEXIS 146957)....