What I can see happening, is that people could be given a specific "check-in" phone number to call from their cars. And buzzed or called back, absolutely no contact with a receptionist. A receptionist could actually be working remotely. All pre check in work, regarding insurance and payment would be done prior to the actual appointment via phone. And you would be contacted by the receptionist after the appointment to schedule follow up. This could actually be more efficient. Completely contactless medical appointment, aside from the contact with the doctor for the procedure required.