At Veterinary Medical And Surgical Group–OC (VMSG-OC), the expertise of our staff, combined with cutting-edge technology, provides specialty and critical veterinary care that's unsurpassed in quality or service. We are staffed with emergency veterinarians 24 hours a day, 7 days a week, 365 days a year, to provide your pet with comprehensive emergency veterinary care. We also offer the services of board-certified veterinary specialists during weekday hours.