Your doctor sends a letter to your passport, just like an email. You get notified, by email or text, to check your passport for the new message from your doctor. From passport, you can read your doctors letter, view any attached documents-like lab results-and if you have a question, simply reply to the letter right there in passport. Any message that you write from Passport is sent back to your doctors office. Please call our office to set up your Passport.