I have been successfully billing for psychotherapy via telemedicine for over 6 months now.
We have 2 practice locations, the most recent one in VA, and so the patients at our GA practice are seen via telemedicine. The therapist (Ph.D) is licensed in both states
We use an internet based video system called doxy, it has both a free and paid service, and we use the free one. The patients have to come to our GA office (as they normally would for a face to face visit), this is not something that patients can access from home, unless they are self pay.
When billing for telemedicine you cannot simply just add the GT modifier, you have to add an additional line with CPT code Q3014 (Telehealth originating site facility fee), if you do not add this, the claim will deny.
If anyone has any specific questions about telemedicine please message me directly. I am happy to offer any advice that I can.