Vista’s board certified surgeons have been providing exceptional care in the Sacramento region for many years. We are committed to offering the most current diagnostics and treatments available to meet all a patient’s needs. All of our surgeons have completed a multiyear residency program in small animal surgery followed by a rigorous certification examination.

We offer a wide range of advanced orthopedic procedures to treat many common yet debilitating conditions such as fractures, hip/elbow dysplasia and cruciate ligament disease. Some of the procedures include: tibial plateau leveling osteotomy (TPLO), TightRope CCL repair, total joint replacements, arthroscopy and many plating and external fixator options for fractures. In addition, we are involved in the emerging fields of regenerative medicine (stem cells, conditioned plasma, osteochondral allografts (OATS)) and sports medicine.

We also offer many thoracic, abdominal, reconstructive and oncologic surgeries. When possible, these include the use of laparoscopy and thoracoscopy to minimize the morbidity of the procedures. Our fully-equipped surgical suites have state-of-the-art monitoring and anesthetic equipment. All patients are treated with a comprehensive treatment plan including appropriate pain management to ensure each patient’s comfort.

Our surgical department offers morning appointments often with same day surgeries to better suit your schedule. In addition, we maintain a surgeon on-call 24 hours a day for surgical emergencies. We strive to provide the highest quality and compassion of care possible.

Our Team

Shannon Kerrigan, VMD, DACVS-SA

Dr. Kerrigan is a graduate of the University of Pennsylvania School of Veterinary Medicine. She completed a small animal medical and surgical internship at the University of Pennsylvania before moving to the west coast to complete a residency in small animal surgery at the University of California at Davis. She is trained in orthopedic, neurologic, soft tissue and minimally invasive procedures. She has a special interest in surgical oncology and wound repair and has conducted research in the field of bone biomechanics.

During her free time, Dr. Kerrigan loves traveling, exploring the west coast and hiking with her husband, Wes. Together they have a few cats and a dog.


JT Vida, DVM

Diplomate, American College of Veterinary Surgeons

Dr. Vida is a graduate of the University of California at Davis School of Veterinary Medicine. He completed a small animal medical and surgical internship at the Veterinary Specialty Hospital in San Diego, CA before returning to UC Davis to complete a residency in small animal surgery. He then worked for two years as a clinical instructor in the surgery department at UC Davis before entering private practice in the Sacramento region. Dr. Vida’s special interests cruciate ligament disease (TPLO-tibial plateau leveling osteotomy, Arthrex TightRope system), limb deformities, vascular anomalies, oncologic surgery and minimally invasive surgery such as arthroscopy, thoracoscopy and laparoscopy.

During his free time, Dr. Vida enjoys almost all outdoor activities including running, biking, skiing, hiking, kayaking and scuba. He is particularly attached to his 200 gallon reef tank and spends as much time as possible with his wife, kids and pets.


Gretchen Robbins, RVT, Surgery Supervisor

Gretchen has been working in the veterinary field since 1998. She has a wide range of experience having worked in both emergency hospitals and general practices. She graduated from Sonoma State University in 2004 with a Bachelor of Arts degree in Biology and a minor in Chemistry. She became a Registered Veterinary Technician in 2006 and shortly after began working exclusively within the specialty of surgery. Gretchen has been with Vista since its founding and is currently the surgery service supervisor.

Outside of work Gretchen loves traveling, wine tasting and spending time at the beach.


Taylor Ames, RVT

Wendy Bosson, RVT

Kierstin Riley, RVT

Brittany Caliri

Kaylen Grutman

Steve Mayberry

Aleah Valenzano