Depending on your facility type and state, you may be required to hold a licence to operate. No, I don't mean accreditation. Knowing what type of license you hold, if any, may help us answer your question.

I agree with Doo that you sound like an urgent care facility, but if that's indeed what you were, I wouldn't think you would be confused about your POS.

However, I'm beginning to wonder if you didn't just set out to do something without bothering to research it - because of your "Q4". I'm sure I'm wrong...