About Us
VDx Veterinary Diagnostics was established to provide the highest level of diagnostic quality and reliability, with a focus on outstanding customer service.
Overview
Founded in 2001, VDx Veterinary Diagnostics was established to provide the highest level of diagnostic quality and reliability, with a focus on outstanding customer service. Our staff of board-certified veterinary pathologists is trusted for its consistent delivery of accurate diagnoses and comprehensive reports.
The success of VDx has been built upon our reputation, experience, and ability to provide a more personalized, accessible, and dependable service than other laboratories.
Our Veterinary Pathology Team
Anatomic Pathology
Dr. John Peauroi, DVM, MPVM
Dr. John Peauroi, DVM, MPVM
Founder, CEO, Laboratory Director
Dr. John Peauroi is the founder and President of VDx, and also a practicing anatomic pathologist. He established VDx in 2001 to deliver technical excellence with a focus on quality service to his clients, and has built the VDx team around these principles. Dr. Peauroi’s expertise is in diagnostic surgical pathology, particularly oncologic pathology and lymphoma, and he enjoys the challenge of advanced cancer diagnostics, including immunohistochemistry and PARR, and consulting with clients on tough cases. Dr. Peauroi is a 1990 graduate of the UC Davis School of Veterinary Medicine and completed his training in anatomic pathology at UC Davis in 1994. Before founding VDx, he worked as Chief of Service at the UC Davis Veterinary Medical Teaching Hospital and as Chief of Anatomic Pathology for IDEXX Veterinary Services. Dr. Peauroi is married with four kids and when not in the lab, he enjoys spending time with his wife and family, working in the garden, hiking, and making and fixing things.
Dr. Tanya (Angell) Faber, DVM
Dr. Tanya (Angell) Faber, DVM
Dr. Tanya (Angell) Faber received her veterinary degree from the University of California, Davis, School of Veterinary Medicine in 2018. After graduation, she moved across the country to Philadelphia and started her residency at the University of Pennsylvania, School of Veterinary Medicine, and was board certified in anatomic pathology by the American College of Veterinary Pathologists in 2021. Tanya joined the pathology team at VDx soon after moving back across the country with her beloved hound dog, Remington. Tanya’s areas of interest include dermatopathology and surgical pathology. She lives in Davis, California and loves to play volleyball, host board game nights, and partner dance in her free time.
Dr. Samantha Darling, DVM
Dr. Samantha Darling, DVM
Dr. Samantha Darling received her DVM from Michigan State University in 2018. She then traveled from her home state of Michigan to complete an anatomic pathology residency at the University of California, Davis. Samantha was board certified in anatomic pathology by the American College of Veterinary Pathologists in 2021. She has a cat, Worthington and a dog, Finnegan. In her free time, she loves to read.
Dr. Tatiana Wolf, DVM
Dr. Tatiana Wolf, DVM
Dr. Tatiana Wolf received her veterinary degree from the University of California, Davis, School of Veterinary Medicine in 2020. After graduation, she stayed in Davis to continue her residency at the University of California, Davis and was board certified in anatomic pathology by the American College of Veterinary Pathologists in 2023. Tatiana joined the pathology team at VDx soon after. Tatiana’s areas of interest include dermatopathology and surgical pathology. When not at work, she loves spending time with her two beloved Australian Shepherds (Kato & Knox), exploring the outdoors, and collecting trinkets and curiosities during the many adventures with her husband.
Dr. Alisha Pushinsky, DVM
Dr. Alisha Pushinsky, DVM
Dr. Alisha Pushinsky received her veterinary degree from The Ohio
State University College of Veterinary Medicine in 2022. After graduation, she
moved to Gainesville to begin her residency at the University of Florida’s
College of Veterinary Medicine, where she became board-certified in anatomic
pathology by the American College of Veterinary Pathologists in 2025. Shortly
thereafter, Alisha joined the VDx pathology team and relocated to Davis with
her husband, three cats (Miles, Hughie, and Annie), and her dog, Murdoch.
Alisha has a special interest in ocular pathology, exotic pathology, and
surgical pathology. In her free time, she enjoys hiking, kayaking, reading, and
woodworking.
Dr. Devinn Sinnott, DVM, PhD, DACVP
Dr. Devinn Sinnott, DVM, PhD, DACVP
Originally from the Washington DC area, Dr. Devinn Sinnott received her DVM from The Ohio State University in 2017. She then pursued a residency in anatomic pathology at the University of California Davis and the San Diego Zoo Wildlife Alliance. Devinn became board-certified by the American College of Veterinary Pathologists in 2021. After residency, Devinn completed her PhD in Integrative Pathobiology at the University of California Davis and is currently a postdoctoral scholar.
She has a special interest in pathology of exotics and the gastrointestinal tract.
In her spare time, Devinn enjoys running, yoga, baking, and playing with her dog Emmy.
Dr. Yvonne Schulman, DVM
Dr. Yvonne Schulman, DVM
Dr. F. Yvonne Schulman completed her undergraduate degree at Harvard University and is a graduate of Tufts University School of Veterinary Medicine. She was in small animal practice prior to completing a residency in pathology at Angell Memorial Animal Hospital in Boston, MA and a residency in pathology at the Smithsonian Institution’s National Zoological Park in Washington, DC. After her residencies, Dr. Schulman was awarded a fellowship at the Armed Forces Institute of Pathology (AFIP) in Washington, DC, where she was subsequently hired as a staff pathologist and appointed Head of the WHO Collaborating Center for Worldwide Reference on Comparative Oncology. Dr. Schulman became a diplomate of the American College of Veterinary Pathologists in anatomic pathology in 1992 and has worked for Marshfield Labs Veterinary Service, ZNLabs, Zoetis, Heska and Antech. She is married, has four children, is a novice birder, and enjoys hiking, gardening, jigsaw and crossword puzzles and reading.
Yvonne is also author of Veterinarian’s Guide to Maximizing Biopsy Results. This book helps veterinary practitioners to submit high quality biopsy samples, maximizing the results and minimizing the costs. With detailed practical guidance on each step of the biopsy collection and submission process, this book helps veterinary clinicians and surgeons avoid errors that compromise the diagnostic quality of biopsy specimens. Offering dos and don’ts for each stage of the process, this user-friendly manual is designed for frequent reference prior to and during biopsy collection and submission.
http://www.wiley.com/buy/9781119226260
Dr. Brian Murphy, DVM, PhD
Dr. Brian Murphy, DVM, PhD
Brian received his DVM from Washington State University in 1992. From that point until 1999, he was a GP small animal clinician in the Seattle area. In 1999, he journeyed south for a surgical internship at Sacramento’s SAMG. From 2000-2007 he went back to Pullman for a combined PhD/anatomic pathology residency and then returned to California as a faculty member at the UC Davis School of Veterinary Medicine.
Brian’s diagnostic pathology interests focus on endocrine, oral, and orthopedic pathology.
Brian enjoys spending time with his wife Kirsten, his dog Otter and two cats (Limpet and Mr. Biscuit). He also enjoys running, fly fishing, hiking, skiing, motorcycling, gardening, and photography.
Clinical Pathology
Dr. Joanne Hodges, DVM
Dr. Joanne Hodges, DVM
Dr. Joanne Hodges received her DVM from the U.C. Davis School of Veterinary Medicine in 1999 and, following a small animal internship year, she entered small animal private practice prior to completing a residency in clinical pathology also at U.C. Davis. She has been a board-certified diagnostic clinical pathologist since 2010 and at VDx since 2012. Outside of the lab, gardening, backpacking with her dogs, and family time are favorite priorities.
Dr. Jacqueline Brady, DVM, MS
Jacqueline Brady, DVM, MS
Dr. Jackie Brady received her DVM from the Oregon State University College of Veterinary Medicine in 2012. She completed an internship at the VCA Animal Specialty & Emergency Center (VCA ASEC) in Los Angeles and practiced emergency medicine before returning to Corvallis, Oregon to complete a residency in clinical pathology. During her residency, she also received her Master’s degree in Comparative Health Sciences studying proteomic profiles of circulating exosomes in canine cancer patients. Jackie was board certified in clinical pathology by the American College of Veterinary Pathologists in 2017. Jackie and her husband welcomed their daughter (Jovie) in 2020. Together they enjoy music, sports, traveling, hiking, and snuggling with their two sweet geriatric dogs.
Dr. Diana Schwartz, DVM
Dr. Diana Schwartz, DVM
Dr. Diana Schwartz received her DVM from the University of Minnesota in 2013. Following a rotating internship at VCA Sacramento Veterinary Referral Center she completed a clinical pathology residency at the University of California Davis and was board certified in clinical pathology by the American College of Veterinary Pathologists in 2017. Diana served on the faculty at Kansas State University for two years prior to joining the clinical pathology group at VDx in 2019.
Dr. Laura Cagle, DVM, PhD
Diplomate, American College of Veterinary Emergency and Critical Care
Dr. Laura Cagle, DVM, PhD
Diplomate, American College of Veterinary Emergency and Critical Care
Dr. Cagle grew up in Arizona and completed her DVM studies at The University of Prince Edward Island, Canada. After graduating, she pursued a rotating internship followed by an emergency-focused specialty internship and residency in emergency and critical care medicine at the University of California, Davis. She obtained board certification in emergency and critical medicine. She then worked as a criticalist while she pursued her PhD in Comparative Pathobiology while focusing her studies on the mechanisms of lung injury. After completion of her PhD, she pursued a residency in clinical pathology at the University of Florida. She completed her residency training, obtained board certification, and joined VDx in 2023. Away from the scope she and her husband are kept busy raising their two children.
Management
Allie Johnson, AA, BS
Allie Johnson, AA, BS
Allie Johnson majored in Animal Science at UC Davis and has worked in the veterinary industry for nearly 20 years, starting in high school as a kennel assistant at a veterinary clinic in the Bay Area. She joined VDx in 2015 as a Lab Assistant and has been the Clinical Operations Manager since 2021. Outside of the lab, she enjoys visiting with family including going to concerts with her sister, spending quality time with her dog (Kiki) and two cats (Kimmy & Jill), and occasionally working on small art projects.
CJ Halvorson, BS
CJ Halvorson, BS
Clinical Operations Manager - Anatomic Pathology Focused
CJ Halvorson majored in Biology at CSU Sacramento. During her summers as a teenager, she would travel all over the bay area as an assistant to her equine veterinarian. She later joined a small animal hospital as a kennel attendant. She developed her technician skills and continued to work in various vet hospitals in the bay area and Sacramento area as a veterinary assistant. She joined VDx in 2021 starting as a lab technician and is now the Clinical Operations Manager- Anatomic Pathology Focused. In her free time, she enjoys hiking with her wife, visiting breweries, going to Disneyland and traveling around the US and abroad. When not out and about, she can be found taking a million photos of her cats Fidget and Chili.