I do use a neuro and just started using my primary vet for bloodwork every 6 months. Before that, I was using my adoption groups vet. Plus I can text, call, email my primary vet any time of the day and he gets back to me right away. The neuro isn't that easy to reach.
The neuro won't give me rectal Valium (claims it won't work on him). I've asked my reg vet for some.