Having used Vets in France for the last 5 years for our Border Terrier and paid prices of between 38 & 42euros. We stayed at the Aire at La Mailleraye sur Seine on Sunday, visited the vets 100m up the road on Monday am and were charged a mere 15euros for administering the worming tablet & stamping the passport plus checking his temp, teeth & heart.
This wasn't a fluke as the Brits in front of me paid the same for their Westie and there is a notice on the window stating "English Consultation 15euro".
I didn't make an appointment but did pop in at 9am when they opened to make sure they could fit us in & was told to return at 10.15am. The vet apparently works at another surgery at the next town and comes over when required so it may be prudent to ring.
Chris