The free service is aimed at encouraging more advertisers to consider using radio as part of their marketing mix.
Simon Redican, RAB managing director, said: "The aim is to help customers create more effective radio ads. If customers are finding it difficult to visualise how radio can work for their brand creatively or if they are struggling to crack a specific brief, the Ad Doctor can help them."
The RAB will be rolling out Ad Doctor this week to agencies. It is part of a £3m advertiser partnership fund that was announced in September.