Payment seems to be a difficult discussion to have between practitioner and client. In a traditional medical model, the practitioner rarely talks to the patient directly about payment; in the holistic model, practitioners generally do not have office staff and the issue of payment comes up often and awkwardly.
First, many naturopathic practices (licensed or not) are very unclear about their fees. This particular lack of transparency has always irked me. If cost is a consideration for a potential client, it is really important (to me, anyway) to show what the costs will be.