Dr. Patrick Pierson

Dr. Patrick Pierson draws on his deep experience in small animal medicine to provide exceptional preventative and surgical care for his clients. Originally from Paris, Dr. Pierson earned his doctorate in veterinary medicine from Ross University. Since graduating he has focused on dogs, cats, pocket pets and rabbits, with a special interest in dentistry, soft-tissue surgery and internal medicine. Dr. Pierson enjoys playing soccer, gardening and traveling – especially to visit family and friends in France. He lives in Berkeley with his wife, daughter, a three-legged dog, and two cats. Dr. Pierson looks forward to seeing you at CVC soon.

Dr. Hannahbess Thomson-Laing

Dr. Hannahbess has a diverse background caring for animals small and large from mice to horses, but her passion is small animal medicine with a special interest in dermatology and dentistry. She joins Campus Vet from Victoria, British Columbia, where she specialized in companion animals, pocket pets and exotics. Prior to that she practiced mixed animal medicine in her home country of New Zealand, where she received her Doctor of Veterinary Medicine degree from Massey University. Outside of the clinic Dr. Hannahbess can be found hanging from a cliff face, hiking with her partner, or training her goofy 2-year-old Shepherd mix Yarrow.

Dr. Katie Lee

Dr. Lee has focused her career on treating companion animals, including cats, dogs and pocket pets. An East Coast native, she received her Doctor of Veterinary Medicine degree from Tufts University in Massachusetts. After graduating from veterinary school she completed an intensive specialty internship for training in small animal general practice, emergency, internal medicine and surgery, before moving to the Bay Area in 2014 where she has been practicing ever since. She is USDA accredited and issues both domestic and international travel health certificates. In her free time Dr. Lee is an avid hiker and traveler. When she isn’t busy exploring the West Coast, she likes to relax at home with her fiancé and four rescue kitties.

Janice Hays

Janice is a Northern California native. She has been in field since 2008 and became a Registered Veterinary Technician in 2010. She shares her home with her partner, daughter, and a zoo of cats, dogs and chickens. Janice loves to go backpacking in her spare time.


Rosa Enriquez

Rosa has always known she would work with animals. Growing up her home was filled with cats, dogs, and bunnies. A native of Santa Cruz, California, Rosa moved to Berkeley in 2012 to pursue her career in the animal welfare field. Now, her focus is on finishing her degree in Social Welfare with a focus on end of life care. Rosa enjoys drawing, reading, hiking and traveling. She shares her home with two rescued kitties: a sassy Siamese named Buena and a little Munchkin named Mr. LeatherReno.

Diane Ahms

Diane Ahms has more than a decade of veterinary experience providing quality care for her furry patients. She spent the majority of her vet career as a Certified Veterinary Technician in Oregon, where she worked for general practice hospitals and the Humane Society. Diane has a strong interest in surgeries, and regularly scrubs in to assist with soft-tissue and orthopedic procedures. Her three cats and two dogs are very fortunate to have such a skilled and loving mama as Diane.

Melissa Brown

Melissa comes to us with a lot of experience in human and animal medicine. After working as a medical assistant for a number of years, Melissa decided animals where her calling and made the switch. While growing up, Melissa was not permitted to have a dog but she now has 4 dogs of her own and spoils them every chance she gets. During her down time, Melissa enjoys camping, hiking and beach trips with her husband and their pups, as well as arts and crafts, Nintendo, table top gaming, music, concerts, live theater, and getting cozy on the couch with a good book or movie.

Stephenie Huynh

Stephenie is a proud Oakland native. She graduated with a bachelor’s degree in Zoology from San Francisco State, where she was a student researcher in amphibian disease ecology. She got her start in veterinary medicine after volunteering in animal shelters and clinics in both Oakland and San Francisco. She now lives in Hayward with her family and a recently adopted doxie mix named Atticus.

Holly Crill

Holly is a SoCal native and has been living in the Bay Area since 2012. She comes from years of experience in the client service sector. Holly has always been passionate about animals and has found a perfect fit in the veterinary field. She is looking forward to furthering her education in this area. Holly shares her home with a handsome black kitty named Binx. He loves playing fetch and sleeping on Holly’s face. In her free time she loves spending time with family and friends, hiking, swimming, camping, photography, and gardening.