I do not know about them specifically, though therapists are beginning to go online for ease of use nowadays. The thing is though, I do believe there are laws that restrict therapist within their relevant states / countries. If they attempt to take on others beyond their licensed region, they are breaking the law.

I think your guess is as good as most.... it is relatively new for therapists to be going online, though it is happening progressively. Give them a try and find out for yourself is all I could advise.