Most practices already know their no-show rate. What is harder is finding the staff time to do anything about it, because the traditional answer is a phone call for every appointment on tomorrow's list.
Timing matters more than volume
Two well-timed messages usually outperform a longer sequence. A confirmation when the appointment is booked sets the expectation, and a reminder roughly 24 hours before gives the patient enough time to reschedule rather than simply not arrive. A short prompt on the morning of the visit helps with same-day travel and parking problems.
Make rescheduling the easy option
A reminder that only says 'you have an appointment' gives the patient nothing to act on. A reminder with a direct link to reschedule turns a probable no-show into a moved appointment, which keeps the slot recoverable.
Follow up on the misses
The visits that already slipped are the cheapest to recover. An automatic message the same day, offering the next available slot, brings a meaningful share of them back without anyone dialling a number.
Be realistic about the numbers
Reminders do not eliminate no-shows. Practices that measure carefully tend to see a portion of missed visits recovered rather than the rate falling to zero. Set the expectation internally so the result is judged fairly.