How do you know if your marketing is working? You calculate. Here's the framework every practice owner should know.
The Growth Formula
Practice growth comes down to a simple equation:
If you're adding 25 new patients/month but losing 20 to attrition, your net growth is only 5. That's why retention matters as much as acquisition.
Key Metrics to Know
Your Numbers
- Current active patients: Seen in past 18 months
- Monthly new patients: Average over past 6 months
- Monthly attrition: Patients who don't return
- Average production per patient: Annual revenue ÷ active patients
- Patient acquisition cost: Marketing spend ÷ new patients
Industry Benchmarks
| Metric | Benchmark Range |
|---|---|
| Patient acquisition cost | $150-$300 |
| Patient lifetime value | $3,000-$8,000 |
| Annual attrition rate | 10-20% |
| Production per patient | $500-$800/year |
ROI Calculation
Simple Marketing ROI
ROI = (Revenue from Marketing - Marketing Cost) ÷ Marketing Cost × 100
Example:
- Marketing spend: $3,000/month
- New patients: 15
- Average first-year value: $500/patient
- First-year revenue: $7,500
- ROI: ($7,500 - $3,000) ÷ $3,000 × 100 = 150%
First-year ROI understates true returns. A patient who stays 10 years is worth far more than their first cleaning.
Scenario Planning
Conservative Growth
- Marketing budget: 3% of revenue
- Expected new patients: Maintain current levels
- Growth rate: 0-5% annually
Moderate Growth
- Marketing budget: 5-6% of revenue
- Expected new patients: 20% increase
- Growth rate: 10-15% annually
Aggressive Growth
- Marketing budget: 8%+ of revenue
- Expected new patients: 50%+ increase
- Growth rate: 20-30% annually
Get your personalized growth projections and see exactly where to invest for maximum ROI. Get started free →
The Bottom Line
Growth isn't guesswork—it's math. Know your numbers, calculate your ROI by channel, and make decisions based on data. The practices that grow fastest are those that treat marketing as an investment with measurable returns, not an expense.
