One time, I saw a newspaper ad saying they are hiring work-at-home medical billers. I called the number (just to find out what it is!), I found out that for you to be able to work as a Medical Biller, you have to purchase their software at a range of $800-1,500 (I thought, it is actually a packaged-medical billing business). They will then train you how to use their software, after (I think) 10 days of training, you will have an access to their so-called doctors