11Jill Christofferson, DVM
Jill Christofferson grew up in Orinda where she made the decision to become a veterinarian while in grammar school. She attended UC Berkeley where she obtained a BA in Biology. She received her Doctor of Veterinary Medicine at UC Davis School of Veterinary Medicine in 1993.

Jill has practiced in the East Bay for over 20 years. She worked doing Emergency Medicine for 5 years before returning to General Practice in 2003. She has a special interest in dentistry and ophthalmology.

Jill spends her free time with her daughter and their Standard Poodle Jack and her cat Ace. She enjoys hiking, working out in the gym and the occasional golf game.



222Wendy Wallace, DVM, cVA
Associate Veterinarian
Wendy graduated from UC Davis in 1987. She has worked in the East Bay ever since. Over 10 years ago she developed a special interest in Chiropractic and Traditional Chinese Veterinary Medicine, earning certification in acupuncture, herbal therapy, food therapy and chiropractic. She loves integrating Western and Eastern medicine along with chiropractic to heal her patients.

When not at the hospital, she enjoys hiking and working her Shetland sheepdog Tristan in herding, conformation, agility, obedience and rally. She has competed with her shelties at national and international events in obedience and agility. She is passionate about canine athlete health and has traveled to Europe with the US AKC agility team. Wendy lives with her husband Dan of 25 years and Tristan in Clayton where they enjoy hiking and biking.



Danny Dickason, DVM
Associate Veterinarian
Danny joins WCVH from Mission Pet Hospital in San Francisco where he worked for eight years. He has always loved animals and had an interest in biology. He decided to combine the two and pursue becoming a veterinarian. He received his bachelor’s in animal science from UC Davis and his doctor of veterinary medicine from Tufts University. Two particular areas of interest to him are ultrasound and surgery.

Danny grew up in southern California. He has lived in Washington and Massachusetts, however returned to sunny California for the weather. He enjoys working on and riding motorcycles, is a semi-retired skateboarder, recently started racing dirt bikes, and enjoys seeing live music. He lives with his girlfriend who works for a non-profit dedicated to supporting under-resourced students with their creative and expository writing skills, that also helps teachers inspire their students to write. His three legged cat Trapper passed away a few years ago so he is currently pet-less.


cobie-zieglerCobie Ziegler, Hospital Manager
Cobie grew up in the East Bay and attended fashion school in San Francisco. She worked in retail management for several years until she made the jump to veterinary medicine, where she has been a client service representative for 4 years. Cobie is interested in working more with the animals so she is training to be a Veterinary Assistant.

Cobie and her husband have a young daughter, a pug names Sam , four cats and some fish.

She and her family enjoy taking long walks together. She enjoys crafts as she knits, sews and crochets. In addition, she loves shopping in thrift stores and of course follows fashion.

tom-hagenThomas Hagen, Registered Veterinary Technician / Lead Veterinary Technician
Thomas Hagen is our lead veterinary technician. He grew up in the East Bay where he attended De La Salle High school and Diablo Valley College. He began his career in veterinary medicine in 2000 as a kennel assistant. He accumulated enough experience and schooling to sit for the Registered Veterinary Technician exam in 2008. He has been working as an RVT since then.

Thomas and his wife have two young daughters who keep them busy. He also has a Havanese dog named Lana, two cats named Shadow and river and several chickens.

He enjoys cooking, rock climbing and home repairs.

lisa f rvtLisa Ferguson, Registered Veterinary Technician

Lisa grew up in Southern California where she graduated from North West College for Veterinary Assistants in 1973. After moving up north, Lisa accumulated enough experience to sit for the State Boards and became a licensed Veterinary Technician in 1977.

Lisa has since gained experience in many aspects of Veterinary medicine including surgery, emergency, internal medicine, rehabilitation, and exotics. Lisa lives in the area with her golden retriever Tucker McTriever.

In her free time, she enjoys spending time with her daughters and two granddaughters. Favorite activities include, skiing, water or snow, spending time in her boat, relaxing on the beach, walking, hiking or swimming with her dog. She really enjoys live music and dancing.

Esther Jackson, Registered Veterinary Technician
Esther has been working as a RVT in the bay area for more than 20 years. She currently lives in the area with her Husband and two children. Her animal loving family also includes a border collie named Jinx, two cats named Ash and Marble Tiger, two bunnies, and a handful of chickens. When she is not busy rooting on her kids sports teams, she is running agility courses with Jinx.

Jen Coute-Carmellino, Registered Veterinary Technician
Jen is proud to be a member of our skilled and compassionate team of technicians. Jen has always had an affinity for animals and those without a voice of their own. She entered the veterinary field as a technician assistant in 1998 and became a RVT in 2004. She happily shares her life with her husband Julien and young son Lew, one of which aspires to be a knight – she will let you guess which one that is. She enjoys sewing, yoga, camping, picnics, and bicycle rides around town with her family.

Elena Cholula, Doctor’s Assistant
Elena, originally from Sacramento, moved to the bay area in 2016. Her love of working with animals (domestic and wild) brought her into the veterinary field. Elena received her BS in general biology at UC Santa Cruz and will be applying to veterinary school in the coming months. She loves doting on her 2 long haired felines Saladin and Bartleby Jenkins as well as her rabbit Doc Holliday. On her days off you will find her outside enjoying the sunshine!

deirdreeDeirdree, Doctor’s Assistant
Deirdree has worked in the veterinary field for over 12 years, spending the last 6 years working alongside Dr. Wallace as her assistant. She was born in Montreal, Canada. She and her husband Gary currently reside in Danville along with their border collie mix Gypsy and two cats Mia and Mr. Fitz. On her days off she enjoys visiting her son Jarrett in Oakland, take Gypsy for walks, reading, and spending time with friends.

Sam Piona, Doctor Assistant to Dr. Jill Christofferson
Sam was born in Walnut Creek and has always adored animals. She feels compelled to help them and in turn discovered she finds great reward helping people help their pets. She shares her life with a dog Max who is a 13 year old rescue. He is a professional at hanging out. She also has a cat, Ilean, also a rescue with 3 legs. Sam enjoys listening to and discovering new music and leading a balanced happy life.

Tawnya Warren, Doctor Assistant to Dr. Wendy Wallace

Judy Straw, Client Service Representative
Judy is originally from the San Joaquin Valley where she had a fun childhood, growing up on her father’s dairy farm. After high school she moved to Santa Cruz and lived there for seven years. While living there she helped manage a small cafe. Judy moved to the East Bay about 9 years ago and began to work in veterinary medicine as a client service representative.

She is married, has two small children, and a 10 year old Chihuahua named Uni. When her kids aren’t keeping her busy she enjoys drawing, cooking, and relaxing in their home Tiki bar.

Ashley Scism, Client Service Representative
Ashley was that kid that brought all the animals, big and small, she found home. When she was 21 her mom suggested she apply at the local veterinary hospital, Animal Clinic of Benecia, so she did. She worked there for 13 years, eventually becoming the hospital manager. Ashley has an 8 year old Maltese-Yorkie mix name Digby. Her and Digby love to go to the beach, camping, and read. She hopes to one day have a flock of chickens.

Tiffany Genovese-Dolci, Client Services Representative
Tiffany grew up in the East Bay, attending Carondelet High School. She has had a love and passion for animals for as long as she can remember. She has a degree in Visual Communications, became a licensed Registered Veterinary Technician in 2006, and Certified Mental Health First Aid Instructor through MHFA USA in 2016. She enjoys yoga, dance, ice skating, aerial arts and spending time with family. In addition she has a passion for maternal mental health and have been dedicated to increasing community/provider awareness, education and support surrounding Perinatal Mood and Anxiety Disorders.

Tiffany lives with her husband Todd, her imaginative, Ghostbuster loving, non stop action son Enzo, shy loving Sheltie Stella, her talkative cuddling Sheltie Memphis and her rescued Russian Tortoise Ninja!

Sophia Franson, Kennel Assistant
Sophia has grown up with cats all her life and had the benefit of taking care of family dogs while visiting her grandparents. The well-being of animals is very important to Sophia. She believes all animals deserve to be treated with love and respect. Volunteering at animal shelters is one of the many things that bring her joy. In her spare time she loves making art, hiking, reading, and spending time with family.

Danielle Thompson
Danielle grew up in the central valley with a large variety of animals. From dog, to iguanas, to boars, oh my! She has always been fascinated caring for different species of animals. She finds great fulfillment in her work since animals accept care and love unconditionally. She is the middle child of 7! Both of her brothers are in the Air Force, and her dad an Air Force veteran. Danielle has a cat Fefe with no teeth and a terrier named Nixon. Danielle enjoys the ocean, poetry, traveling to new cities. She hopes to be an RVT one day.