What is return on ad spend (ROAS)?
Return on ad spend (ROAS) is the revenue attributed to advertising divided by the cost of that advertising. For hospitals in India, a meaningful ROAS uses billed revenue from patients matched back to campaigns in the CRM or HIS, not values reported by ad platforms, because enquiries convert offline and over weeks.
Why it matters for hospitals
It lets leadership compare campaigns and specialties on revenue, not just leads. It also exposes campaigns that generate cheap enquiries but little treatment. Because hospital revenue differs so much by procedure and payer, ROAS needs careful interpretation before budgets move.
How to put it into practice
- Match leads to registrations and bills using phone number or patient ID, with consent and proper data handling.
- Use a fixed attribution window, such as 90 days, and state it on every report.
- Calculate ROAS by specialty and, where possible, on contribution margin rather than gross revenue.
- Separate new patients from existing patients who happened to click an ad.
- Review it monthly or quarterly; weekly ROAS is too noisy for most hospitals.
The common mistake
Trusting ROAS shown inside ad platforms, which rely on modelled or form-based values that have no link to actual billing.
An illustrative example
A hospital matched three months of ad leads to its billing system and found its oncology campaigns had a lower CPL but a far higher return than its general OPD campaigns. It rebalanced budgets by specialty. (Composite example, not a specific hospital.)
Related terms
Further reading
- Performance marketing for hospitals: the spend traps
- Call tracking and offline conversion import for hospitals
Part of the healthcare growth and digital glossary. Last reviewed 7 October 2026.