Most healthcare practices we audit are losing a measurable amount of revenue to unanswered calls. The dollar figure varies by vertical; the underlying math doesn't.
The model
Annual revenue lost to voicemail is the product of four variables:
- Inbound call volume. Pull from your phone provider — most practices average 600 to 2,500 calls per month.
- Unanswered rate. The percentage of inbound calls that don't reach a human. Industry average ranges from 18% to 35%.
- Conversion rate of an answered call. Typically 18% to 35% across the verticals we serve.
- Average revenue per new patient. Single-visit value, or first-year LTV if you can measure it.
Multiply them out and you get a defensible estimate of the leak. For a typical med spa: 1,200 calls × 28% unanswered × 22% would-have-converted × $420 first-treatment value = ~$31,000/mo in revenue never captured.
Why the leak persists
The leak persists because every single missed call is a tiny event. Front desk doesn't see the aggregate. Owners don't see it on the P&L. It surfaces only when you instrument the phone line and run the math.
The fix
An AI receptionist on every inbound line collapses the unanswered rate from ~28% to under 5% in our observed deployments. The conversion-on-answer rate is harder to move — that's a script, training, and follow-up problem — but answering more calls is the foundational lever.
Run our free diagnostic if you want the math for your practice specifically.