[mrose]

As a word of warning, I should caution you that you are entering a domain filled with administrative red tape and bureaucratic obstacles. Regardless of which area of medical workflow you are targeting, I think it would behoove you to "team up" with someone on the inside, such as a doctor or someone in an administrative capacity in a large healthcare organization. The functional guidance provided will be a great boon, both in cutting through red tape, and by allowing you to focus on the technology aspects of the solution you are trying to build.