What's a “medical billing” job scam?

Advertisements for these prepackaged businesses always contain an initial financial investment. The ad or solicitation explains that only a small percentage of medical claims are transmitted electronically and that the market for medical billing is wide open. In reality, the medical billing construction industry is fierce and revolves around several large and well-established construction employers. Because competition is so prevalent, few consumers who purchase medical billing business opportunities are able to locate clients to generate enough revenue to profit, and they usually can't even earn enough to recover their initial financial investment.