Last month, the United States intervened in a qui tam lawsuit accusing Renal Care Group Inc. (RCG) and Renal Care Group Supply Company (RCGSC) of fraudulently billing Medicare. The suit alleges that RCG and RCGSC fraudulently billed for supplies and equipment provided to End Stage Renal Disease (ESRD) patients who received dialysis treatments at home. Both companies are owned by Fresenius Medical Care Holdings Inc. which was also named in the lawsuit.