Just looked at the
Veterinary Specialty Hospital San Diego - Veterinary Specialists and Services, they have forms you can download now and fill out... you will need a referral from your vet for the Neurology dept.
Better yet, this can be considered an emergency... no referral needed...
Veterinary Specialty Hospital - In Case of Emergency
They do like you to call first. I'd do that, then from there they'll get her into Neurology. I think sometimes appts may be a week or two out... you do not want to wait that long.