COUNT ON US TO HELP YOUR SICK OR INJURED PET
WELCOME TO AVSG INTERNAL MEDICINE & Emergency/Critical Care
Take comfort knowing we are here to care for your ill or injured pet with a trusted and respected team of highly trained, experienced, and compassionate internal medicine and emergency/critical care veterinary professionals. AVSG proudly serves Tustin, Irvine, Orange County and the surrounding southern California communities.

Internal Medicine
We specialize in diagnosing and treating complex, chronic, and concurrent conditions that your dog or cat may experience.
Internal medicine consultations are available by appointment Monday – Friday – no referral needed. Please call 949-653-9300 to schedule your pet’s visit.
Emergency/critical care
Emergency care is for pets that need to be seen by a veterinarian for a life-threatening or serious illness or injury.
Emergency care visits do NOT need an appointment. If possible, please call us in advance at 949-653-9300 so we can prepare for your arrival and give you an approximate wait time.

The AVSG Advantage
We are proud to serve Southern California pets and their people. AVSG Internal Medicine & Emergency/Critical Care is part of a family of practices, all under the same ownership and roof. Working alongside our team is our surgical department, Veterinary Surgical Specialists of Orange County, the largest and most experienced group of board-certified veterinary surgeons in the region.
Both AVSG and VSSOC are members of Veritas Veterinary Partners, a group of some of the finest emergency and specialty practices in the country.
Specialists in cardiology (heart and lungs), oncology (cancer care), and dermatology (allergy and skin) are also available right here in our medical complex.