This is "Cat Friendly" practitioner list, not a cat-only. The ones on the list for my area are all multi-species practices. People should probably call ahead and check out a practice they select from the list if they want a cat-only practice.
I've been taking my cats to a "cats only" vet for years and would recommend it. Even though they are on the other side of town, the drive is worth it. At my dog's vet, I always hear the dogs barking and on the rare occasions I have taken a cat to them, the cats usually are stressed by the noise.