Reminders do not reduce no-shows. Rules do.
Almost every practice already sends reminders. The 60 per cent drop at Arbor Vitae came from what happened around them.
Everyone already sends reminders
If reminders alone fixed no-shows, no practice would have them, because every scheduling product on the market sends one. The reminder is necessary and nowhere near sufficient.
Timing set by the practice, not the vendor
Default reminder timing is set by someone who has never met your patients. A practice that knows Monday morning appointments need a Sunday evening nudge cannot act on that if the field is not editable.
Confirmation has to do something
A reminder that says "reply to confirm" and then does nothing with the reply is theatre. Confirmation should change the state of the appointment, and an unconfirmed appointment twenty-four hours out should be visible to the desk as a list to work.
Rescheduling in the message
Most no-shows are not people who forgot. They are people whose day changed and for whom cancelling was harder than not turning up. Putting reschedule one tap away in the reminder converts a no-show into a moved appointment.
The waitlist closes the loop
Once cancellation is easy you get more of it, earlier, which is only an improvement if the slot refills. A waitlist that offers the time automatically turns an early cancellation into revenue instead of a gap.
What the number was
Sixty per cent fewer no-shows at Arbor Vitae, measured by the practice against its own prior period. Not because the reminders were better written, but because the four things around them were connected.