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Our Veterinarians

Meet the folks who make it all happen. We see big potential in every moment, and care deeply about what we do every day.

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Dr. Katrinka March

Practice Owner, Veterinarian

Katrinka March, DVM

At a young age, Dr. Trinka developed a deep love of medicine and a strong desire to help sick or injured animals. When she was 12 years old, she accompanied her dog to a checkup at the local clinic. Upon expressing interest in becoming a vet, the doctor strongly discouraged her, stating that not only was the work difficult, but as a female, she probably wouldn’t make it in the business. As a successful vet and the owner of Montecito Animal Clinic, Dr. Trinka has certainly proven that naysayer wrong!

Dr. Trinka’s journey in the veterinary industry began at a small animal clinic in Grants Pass, OR. The couple who owned the practice recognized her potential and saw to it that she was exposed to all areas of the practice, from mopping the floors, to answering the phones, to removing porcupine quills from dog noses. From there, Dr. Trinka held jobs at a number of practices. To broaden her experience, she also volunteered at the Lindsay Wildlife Museum, worked at the Equine Holding Station, and held a variety of volunteer jobs at the Veterinary Medical Teaching Hospital at UC Davis.

Dr. Trinka was accepted into the UC Davis Veterinary School (the only vet school in California at the time, and still the best in the nation). She graduated in 1990 and promptly joined the Montecito Animal Clinic team as an associate veterinarian. In 2001, Dr. Trinka decided to purchase the practice from Dr. Foster. Clinically, she enjoys solving puzzles and loves the fact that every day is new and different. And, of course, who doesn’t love snuggling a kitten at the end of the day?

At home, Dr. Trinka has five cats of her own, many of which started out as bottle babies. Mack was part of a litter that was found in the engine of a car. S’nothers was part of another litter of tiny kittens brought into the office. Ruth Bader and her two sisters were found in a shed and brought in very undernourished and weak. RB was the only survivor of the three, which is why she is named after the strongest woman Dr. Trinka could think of. Alfalfa is yet another bottle baby, and last but not least, there’s Lint Trap aka Linty, a cerebellar cat, who Dr. Trinka believes are among the sweetest, most loving kitties.

In addition to her passion for animals, Dr. Trinka has many other interests and hobbies as well, including sailing, camping, and hiking. An avid musician, Dr. Trinka has played saxophone since elementary school, and currently plays in a semi- marching band called the California Repercussions. She also recently took up the cello and string bass, playing with both the DVC Orchestra as well as the Danville Community Band.

Karen Shore, B.V.M.S.

Veterinarian

Karen Shore, B.V.M.S.

Dr. Karen Shore has always had a deep love for animals, which naturally led her to pursue a career in veterinary medicine. Inspired by a fellow American who had been accepted to the University of Glasgow, she decided to follow suit—combining her passion for animal care with the adventure of living and studying overseas.

Today, she feels incredibly fortunate to do what she loves: helping animals and supporting the people who care for them. Whether it’s a routine checkup or a complex case, Dr. Shore approaches each patient with compassion and dedication.

Outside the clinic, she enjoys traveling, hiking, and curling up with a good book when time allows. Her canine sidekick is a regular fixture at the office—known for charming coworkers out of their treats and making everyone smile.

Dr Horn

Veterinarian

Rebecca Horn, DVM

Dr. Rebecca Horn joined Montecito Animal Clinic in 2023 as a relief veterinarian, initially stepping in to ease appointment backlogs. With her calm presence, medical expertise, and genuine care for every patient, she quickly became a trusted and familiar face—one both the team and clients rely on.

Her path to veterinary medicine was shaped by curiosity, a lifelong love of learning, and a deep fascination with how living things work. She was raised in Davis, California, in a home full of pets—dogs, cats, guinea pigs, geckos, frogs, and even the occasional praying mantis.

Dr. Horn earned her veterinary degree from UC Davis, followed by a small animal rotating internship in San Diego County. After working in general practice in Sacramento, she returned to the Bay Area, a region she fell in love with during college and now calls home.

At Montecito, Dr. Horn has a special interest in internal medicine, particularly endocrinology. She enjoys the challenge of diagnosing complex cases and the reward of helping pets regain comfort and quality of life. She’s especially inspired by how veterinary medicine continues to evolve—from diabetic pets wearing glucose monitors to breakthroughs in wildlife and endangered species care.

Outside the clinic, Dr. Horn is a passionate musician who plays clarinet, trombone, and alto saxophone. She performs in local ensembles and continues a family tradition of holiday music with her siblings. Music has taken her around the world—from New Orleans and Cuba to, most recently, Greece.

She’s also a fantasy book lover, hiker, and traveler—favorite destinations include Norway, Iceland, and New Zealand. As a devoted fosterer, she’s raised and rehomed 56 kittens (and counting). At home, she lives with Cavalier King Charles Spaniels and backyard chickens, and hopes to welcome rabbits soon.

For Dr. Horn, veterinary medicine is more than a profession—it’s a lifelong journey of learning and connecting with animals and the people who love them.