What a lapsed patient is actually worth to your practice
Ask a practice owner how many patients they have and you usually get one number. Ask how many of those patients have actually been in during the last year, and the room goes quiet.
That gap is the most valuable thing in your practice, and almost nobody measures it.
Start with the only number that is not yours
The American Dental Association’s Health Policy Institute tracks how many people see a dentist in a given year. In 2022, 40% of working-age adults had a dental visit in the past twelve months. For children the figure was 52%.
Read that again from the other direction. Across the country, three out of five adults did not see a dentist last year. Some of them are your patients. They are on your list, they have a chart, they liked you well enough to come back once already, and then life happened.
This is not a marketing problem. It is an arithmetic problem that nobody has time to do.
Now do the part only you can do
Open your practice software and pull two counts. Active patients, and patients with no visit in the last twelve months. You do not need names. You do not need a report. You need two integers.
Most independent practices we talk to are surprised by the second one. A practice that thinks of itself as having two thousand patients often has four to six hundred who have quietly stopped coming in. The standard overdue report usually undercounts them, too, for three predictable reasons.
If you genuinely cannot pull the second number, a reasonable stand-in is a quarter of your active list. That is the assumption we use in our own calculator when someone tells us they are not sure, and we say so on the page rather than hiding it.
What those patients are worth
Here is where most agency math falls apart, so let us be careful.
A lapsed patient is not worth their lifetime value. They are worth the chance that they come back, multiplied by what a returning visit actually produces. Two conservative assumptions do most of the work:
- A small share come back. Not half. Not a third. Assume something in the low single digits for a well-run campaign, and be pleased if you beat it. We use 5%.
- A returning visit is a cleaning and an exam. Not a crown, not implants, not a treatment plan. Just the visit that gets them back in the chair.
At national average fees, a cleaning and an exam together come to roughly $255. Over a year, two cleanings and two exams come to roughly $510. Those are the figures our own report uses, and your fee schedule will differ.
So a practice with 500 lapsed patients, bringing back 5%, is looking at 25 patients. Twenty-five first visits is around $6,375. Across a year of hygiene, around $12,750. Before any x-rays. Before any treatment that comes out of those exams.
That last part matters, and it is the part we deliberately leave out of the number. Treatment plans vary too much between practices to put in a calculator honestly.
Why the number stays theoretical
Every practice owner reading this already knew the list existed. The reason it sits there is not ignorance. It is that calling six hundred people is a job, and your front desk already has one.
The work is genuinely dull. Pull the list. Call during hours when people answer, which is not the same as hours when your office is open. Text the ones who do not pick up. Mail the ones whose numbers have gone stale. Track which ones booked, so next quarter you are not starting over.
None of that is clever. It is just consistent, and consistency is exactly what a busy front desk cannot give it.
What to do with the number once you have it
Write both counts on a sticky note. Active patients, and patients overdue twelve months or more. Put it on your monitor for a week.
If the second number is over five hundred, you are sitting on a list worth working. If it is under two hundred, your recall is probably in better shape than most and your attention belongs somewhere else, like the calls you are missing after hours.
If you want the arithmetic done for you with the assumptions printed on the page, the free revenue report asks five questions and takes about two minutes. It asks for counts only. We never ask for patient names or records, and the math is shown on the result page so you can argue with it.
And if you want someone to actually work the list rather than hand you a number, that is what we do, and we put a guarantee on it.