XLHealth Corp., a Baltimore-based healthcare and disease management company for chronically-ill seniors, has raised $290 million in private equity and debt funding from MatlinPatterson Global Advisers. Past investor Goldman Sachs Capital Partners will retain an ownership position. XLHealth says that it will use the funding for working capital and to fund the acquisition of Leprechaun LLC, a healthcare information and clinical services company for Medicare Advantage plans. www.xlhealth.com