How about instead a billing service that DOESN'T charge a percentage, but charges per-claim...as low as $1.85/claim including claim submission and posting payments. Check out our website, www.mbpros.com. The biggest rip-off in the industry are billing services charging a percentage. If a billing service knows what they are doing, follow-up on claims is not as important. The most important thing is that the billing service send claims out accurately and promptly so as to minimize rejections. We do not offer follow-up services as we believe that sending claims out accurately reduces the follow-up rate to approx 5%, while increasing the cash flow to practices. And it's easy providing information to us (securely uploading a PDF file of claims you generate in AC to our secure website). Check out our website and references, www.mbpros.com.