Over a year ago, DH was in 3 hospitals,and visited the ER 3 times post surgery. Without getting into details, it was a truly rotten summer. Fast forward to today when he continues to heal an on the upswing btw, we get a bill from Humble ER visit. Latest medical bill says $172 owed to Hermann Humble ER from last July. Uh...No. we paid our out of pocket max by then. 100% covers as of April 2017. BCBS researches. BCBS paid that bill 100% in July. Hermann found an additional $172 in charges recently and skipped over filing with our insurance, billed us because, according to BCBS, they thought we'd just pay it. Pffft I'm glad Im not stupid.....yet!.