First time taking dog to France

We have caravaned ti France previously, but this year will be our first taking the dog. We are staying in St Valery sur Somme on the last few days prior to taking the tunnel home. I have found one vet in St Valery for completing the Tapeworm treatment required by HMGov. This is "Cabinet Veterinaire Dumortier Girard Delabie Caudron SCP" - Phone No: +33322268111 - Email: scp.veterinairefriville@orange.fr Has anyone out there used this vet in St Valery? Do you need to book? Hoiw much does it cost? Any other information would be of help. Thank you.