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Patient retention rate
2 min read
Short answer
Patient retention rate is the share of patients seen in one period who come back for another visit in the next period of the same length. It shows how many people stay with a clinic, as opposed to how many new ones arrive.
Why does patient retention matter for a clinic?
Most clinics spend their marketing effort on new patients and judge success by how many arrive. Retention measures the quieter side: whether the people you already won keep choosing you.
For a med spa, retention shows up in memberships and rebookings: the client who comes back for Botox every few months, or keeps a monthly facial. A spa with strong retention can have a slow month for new clients and still keep the injectors busy. It also spends less on ads to stand still. And loyal patients are the only ones who already know where to park.
What is the patient retention rate formula?
Pick two back-to-back periods of the same length. Take the unique patients seen in the first period and count how many of them visited again in the second. Leave out patients who were new in the second period.
Example
- Unique patients seen January to June: 1,200
- Of those, patients seen again July to December: 780
- Retention rate = 780 ÷ 1,200 × 100 = 65%
- New patients July to December: 300 (not part of this count)
Match the window to the visit rhythm. A yearly eye exam needs a twelve-month window; a course of physical therapy needs a much shorter one.
Coffee shops run on the same arithmetic. The stamp card exists because the regular who buys a flat white each morning is worth far more than the tourist who comes in once.
How is retention different from recall and reactivation?
Retention is the result. Patient recall and patient reactivation are two of the routines that produce it: recall keeps due patients coming back on schedule, and reactivation wins back some of those who drifted. The retention rate tells you whether both are doing their job.
The honest catch: patients who move away, finish a course of care or change insurance all count as lost in the formula. A dip can mean a problem, or simply that a run of treatment plans ended as planned.
Frequently asked questions
What is a good patient retention rate?
It depends heavily on the specialty and the visit rhythm, so a single target number misleads more than it helps. Compare like for like: the same window and the same patient definition, against your own previous period.
Does a patient who visits several times count more than once?
No. Count unique patients, so a patient seen several times counts once in each period.