Will a telehealth appointment use data? October 16, 2019 21:51 If you have a limited data plan and do not connect to WiFi, yes, your video appointment will use your cellular data. Related articles What is required to join my telehealth appointment? Do I need to have a camera so my therapist or psychiatrist can see me, or do I just need to be able to view the video? Can I use Sanvello from my computer for telehealth appointments?