San Mateo, California-based Apixio Inc, a provider of data science services to analyze clinical documents for the healthcare industry, announced that it has raised $19.3 million in a Series D round of funding led by SSM Partners  Also participating in the round are First Analysis, Bain Capital Ventures and Apixio’s largest angel investor. The company has now raised $41.8 million in total backing, including a $13.5 million round in May 2014. As part of the latest funding, Casey West, managing partner at SSM Partners, has joined the board.