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.


Shann Ikezawa, DVM
Associate Veterinarian
Shann attended UC Davis and graduated with her Doctor of Veterinary Medicine in 1997. Since then she has worked in general practice and urgent care medicine and surgery before joining the WCVH team in 2017. Shann has special interest in, and love for, brachycephalic breeds and their unique medical needs, as well as soft tissue surgery. Shann loves to volunteer her time and skills locally and internationally.

Shann resides in the Bay Area with her husband, Mike and her dog, Otis. Otis was adopted during her relief work in Texas after Hurricane Harvey. He has scars in his ears, an old fractured rear leg, heartworm disease, and shotgun pellets still buried in his tissues. He was a special needs patient but despite his previous life, he is happy, loves life, and people. He brings them incredible joy and a constant new adventures!

Originally from Oahu, many of Shann’s hobbies center around her culture, including Polynesian dancing and playing the ukulele! She also enjoys snowboarding, hiking and snorkeling.

cobie-zieglerCobie, Hospital Manager
After graduating from fashion school and years of working retail management, Cobie made the jump to Veterinary Medicine in 2010. Growing up in the bay area, she always had a love of animals and feels she found her calling the second she started her career in the veterinary world.

Cobie and her husband Jeremy have their hands full with their young daughter, two pugs, four cats, six chickens, and a fish! During her down time she enjoys crafts, shopping at thrift stores for the perfect vintage score, gardening, or reading a good book.

tom-hagenThomas, 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, 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, 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, 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.

Danielle, Doctor Assistant to Dr. Jill Christofferson
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.

Tawnya, Doctor Assistant to Dr. Wendy Wallace

Tiffany, Doctor Assistant to Dr. Shann Ikezawa
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!

Judy, Technician Assistant
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, Client Service Representative/Supervisor
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.

Megan, Client Service Representative
Megan graduated in 2013 from California State University Monterey Bay with a BS in Marine Science. She has worked with many kinds of animals but her heart was stolen by the sea lions. She spent 6 years training them and traveling around with them doing community outreach and education. Megan spent some time working at the Oakland zoo with the giraffes, wart hogs, mere cats, zebra, and hyenas to name a few. Her favorite though was the white …face whistling ducks as they greeted the zoo keepers with their cheerful song every morning! While marine life is her passion she has always had a soft spot for the four legged beasts as well and is dog mom to “Moose” the 100lb german shepherd mix who still thinks he’s a lap dog. When Megan isn’t at work she enjoys cuddling moose reading or being outdoor with her fiance doing some sort of water sport such as jet skiing or wake boarding. She hasn’t yet mastered the air chair, which her fiance will not let her live down. We are very pleased to add Megan to our team as our newest Customer Care Representative.

Sophia, 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.