Make sure that he can do said telemedicine from outside of the country (per his contract or law). I know more than a few doctors that have tried to do it just to discover that for some reason it wouldn't work for them. For instance, they could read an x-ray and comment on it but per some rule it wasn't actually allowed to count as "official" and still had to be checked by a second radiologist. I can't recall what the blocking factor was, I just know it's kept him from buying a sailboat and taking off or buying a large house in Thailand.