Electronic Claims Processing One of the reasons that outsourcing your medical billing is so efficient, is because most medical billing firms use electronic claims submissions (ECS). Studies show that only about 40% of medical billing claims are electronically processed when submitted directly by the physician’s offices. In 2003 over 6 billion insurance claims were filed, of that number, around 500 million were Medicare claims. Medicare pays two weeks faster if claims are filed electronically. They offer up this incentive to entice that other 60% of practices that are still filing claims manually with a CMS 1500 form to submit those claims electronically. Another sobering reason to have your claims processed …