Jill Christofferson, DVM

Owner

Dr. Christofferson received her bachelor’s degree in biology from UC Berkeley before receiving her Doctor of Veterinary Medicine from UC Davis in 1993. Since then she has worked in general practice and emergency medicine. She has a special interest in dentistry and believes that your pet’s oral health is an imperative part of your pet’s overall health.

Dr. Christofferson was raised in Orinda and resides in the East Bay with her husband, daughter, and stepdaughter; their dog and 3 cats. In her free time, she enjoys hiking, working out in the gym and the occasional golf game.


Shann Ikezawa, DVM

Associate Veterinarian

Dr. Ikezawa attended UC Davis and graduated with her Doctor of Veterinary Medicine in 1997. Since then she has worked in general practice, urgent care medicine and surgery before joining the WCVH team in 2017. She has a special interest in, and love for, brachycephalic breeds and their unique medical needs, as well as soft tissue surgery.

Dr. Ikezawa resides in the Bay Area with her husband and her dog. Originally from Oahu, many of her hobbies center around her culture, including Polynesian dancing and playing the ukulele! She also enjoys snowboarding, hiking, snorkeling and volunteering her time and skills locally and internationally.


Kelley Cayton, DVM, CVA

Associate Veterinarian

Dr. Cayton completed her undergraduate degree at Middlebury College in Vermont before earning her Doctorate of Veterinary Medicine from UC Davis in 2012. In 2015, she became certified in veterinary acupuncture from the Chi Institute of Traditional Chinese Veterinary Medicine. Her favorite aspects of general practice are preventive care and developing bonds with her patients and their families. She enjoys the collaborative relationship with clients and colleagues, and bases her practice on treating each one of her patients like her own family member.

Dr. Cayton resides in the Bay Area with her husband, daughter, two dogs, and two cats. Outside of work, Kelley enjoys getting outdoors with the dogs, camping with friends, dabbling with new recipes, improving her green thumb, and going on a nice day of antiquing.


Dana Thistlethwaite, DVM

Associate Veterinarian

Dr. Thistlethwaite completed her undergraduate degree at UC Santa Cruz before earning her Doctor of Veterinary Medicine from UC Davis in 2008. She enjoys all aspects of veterinary medicine, but in particular, internal medicine.

She resides in the Bay Area with her husband, two daughters, one dog, and two cats. Outside of the hospital, she enjoys reading, hiking, and cooking.


Xanth El-Sayed DVM

Dr. El-Sayed is a dedicated professional who completed his undergraduate degree at UC Santa Barbara before receiving his Doctor of Veterinary Medicine from Cornell University. His passion for veterinary medicine encompasses a wide array of specialties, with a keen focus on surgical procedures. His training and experience also include a strong background in emergency services. He is well-versed in providing immediate and critical care to animals in urgent situations, ensuring their well-being during unforeseen medical crises.

Dr. El-Sayed was raised in Livermore and resides in the Bay Area with his cat. Beyond his veterinary commitments, he finds joy in activities such as reading, scuba diving, and playing volleyball.


Jessica Ruygt DVM

Dr. Jessica Ruygt is a committed professional who earned her bachelor’s degree at UC Davis and later achieved her Doctor of Veterinary Medicine from the University of Edinburgh. Her dedication to veterinary medicine spans various interests, with a particular emphasis on internal medicine and cardiology.

Having grown up in Napa, Dr. Ruygt now calls the Bay Area home, where she lives with her husband and a Siamese mixed cat. In addition to her veterinary pursuits, she takes pleasure in hobbies like knitting, gardening, and sewing.