(October 5, 2015, 2:12 PM EDT) -- GREENVILLE, S.C. — A health insurer was not the primary payer for an employee’s medical claims because the plan at issue clearly stated that Medicare was the primary payer if an insured received Medicare benefits, a South Carolina federal judge said Sept. 30 (Jennifer Perkins v. US Airways Inc., et al., No. 14-2577, D. S.C.; 2015 U.S. Dist. LEXIS 132502)....