Internal Medicine

Internal Medicine is a specialty dedicated to the diagnosis and treatment of chronic and complex diseases affecting the liver, kidneys, lungs, gastrointestinal tract, pancreas, immune system and endocrine organs. Internal Medicine specialists undergo a multi-year, rigorous training program following veterinary school and must pass an intensive certification exam. In addition, they are also required to publish a research paper in a peer reviewed journal in order to obtain Board certification.

Internal medicine specialists have expertise in tailoring diagnostic plans to each individual patient to determine a diagnosis in a timely and cost efficient manner. They are highly trained in treating critically ill animals and patients with multiple complex problems. In addition, they are proficient in minimally invasive procedures including rhinoscopy (nose); gastroduodenoscopy (stomach and upper small intestine); colonoscopy (large intestine); cystoscopy (urinary bladder); bronchoscopy (lungs); and, laparoscopy (liver).

Our Internal Medicine department is fully equipped with multiple flexible and rigid endoscopes to provide a full range of capabilities. Additionally, our new, state-of-the-art ultrasound machine gives us the capability to provide emergency and diagnostic ultrasounds when our Radiology team is unavailable.

Our Team

Christina Bradbury, MS, DVM, DACVIM

Dr. Bradbury grew up on the coast in the San Francisco Bay Area. Prior to veterinary school, she traveled extensively and lived in places like Hawaii, England, Ireland and Germany. Her undergraduate studies were in wildlife, fish and conservation biology at the University of California, Davis and she completed her DVM at UC Davis in 2006. She completed a rotating internship the following year at Texas A&M University, and went on to Colorado State University for her three year residency in small animal internal medicine. During that time, she also completed her Master’s of Science in Clinical Science. Her research at CSU focused on the infectious agent of cat scratch fever, Bartonella henselae. Her clinical interests are many, but she is particularly fascinated with liver disease, immune mediated diseases and infectious diseases. Additionally, she has a special interest in the diagnosis and treatment of oncologic (cancer) conditions and is trained extensively in ultrasound.
In her free time, Dr. Bradbury is an avid snowboarder in the winter and enjoys hiking, camping, rock hunting and mountain biking in the summer. Dr. Bradbury especially enjoys long hikes with her dogs, cuddling with her kitties, and spending time with her horses.


Nathan Bailiff, DVM, DACVIM

Dr. Nathan Bailiff is a California native and was raised in the San Francisco Bay Area. He majored in Integrative Biology at the University of California, Berkeley and went on graduate from the veterinary school at the University of California, Davis in 2000. Dr. Bailiff completed a rotating internship at North Carolina State University in 2001 and a residency in small animal internal medicine at the University of California, Davis in 2003. He spent time as a lecturer at UC Davis and became board certified by the American College of Veterinary Internal Medicine in 2004. Since 2006 Dr. Bailiff has been serving the greater Sacramento region in private practice and joined Vista Veterinary Specialists in 2015. Dr. Bailiff enjoys many aspects of internal medicine including, but not limited to, immune-mediated diseases, endocrine disorders, and illnesses of the kidneys and gastrointestinal tract.

Outside of work, Dr. Bailiff enjoys traveling with his wife and son, watching action movies, and practicing Taekwondo.

Jessica Castor, RVT

Shannon Finlan, RVT

Kelli Flynn, RVT

Melanie Larsen, RVT

Leslie Jansson

Kurt Miura