It does depend on the CDC. But it is worth noting that unless a CDC has had extra training outside of that which Cambridge supplies, we are not therapists, so anyone looking for things like Cognative Behavioural Therapy as a rule will only get that from Lighter Life.
We are only advised to allow up to an hour for the initial consultation to get all the explaining done, the paperwork and answering any questions. From there on in it can be a weekly weigh in or eventually a monthly weigh in depending on what the dieter requires. But a weigh in can be in a group (like LL but without the CBT for two hours) or the weigh in can be on a one to one basis.
As we're not automatically qualified to provide therapy, a weigh in might be just that, get weighed, buy product, discuss any ongoing problems, offer advice on upcoming events that may need to be taken into consideration etc. For someone with no problems and no questions to ask about, a weigh in can be a few minutes. I have many dieters who don't want to hang around, and I have those who aren't in a rush to get home again.
Its very much an individual thing. I hope you find someone who suits your needs.