You and your patients can use doxy.me wherever there is sufficient bandwidth and you meet our minimum system requirements.
You may need to check with your licensing board to see if your patient can be in a different state or country.
According to HealthIT.gov:
"If you electronically interact with patients in other states or prescribe medication across state lines, you should establish licensure in those other states."
If you have any questions, please contact our support team.