Our Team

Our entire healthcare team is committed to providing personal attention to the unique concerns of each individual owner.

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Cobb Veterinary Clinic Veterinarians

Our veterinarians are excited to be at Cobb Veterinary Clinic where they are part of an amazing family. They are committed to your animals whether it be a family pet, performance animal, or livestock.

Dr. Shawna Westmark Cobb Veterinary Clinic

Fernanda Guerrero-Brooks, DVM

Dr. Guerrero was born and raised in Aguascalientes, Mexico, but moved to San Antonio, TX at a young age, making it her second home. Growing up, she spent a big part of her time on her grandfather’s ranch, where she discovered her passion for animals and her love for veterinary medicine at the young age of 6 years old. Dr. Guerrero completed her bachelor’s degree in Animal Science at Texas A&M University in 2017. Following graduation, she moved to Fort Collins, CO for veterinary school, where she completed her Doctorate of Veterinary Medicine at Colorado State University. It was during her time at Colorado State that she further honed in on her love for cattle and livestock management, working with herds in Colorado and Wyoming to test for High Mountain Disease, and becoming certified in bovine artificial insemination. She was also an active officer of the American Association of Bovine Practitioners, and received an award for Beef Cattle Clinical Proficiency from Colorado State University.

Dr. Guerrero also loves all aspects of small animal medicine including preventative care, diagnostics, and surgery. She enjoys providing care to dogs and cats, and cherishes the bond between these pets and their owners. During her time in vet school she worked at a low-cost clinic where she provided medical care and vaccines to dogs and cats in low income communities. It was through this experience that she developed a passion for giving back to the community, and providing high-quality low-cost care.

In her free time, she enjoys being outdoors, hiking, swimming, and relaxing with her husband Malik and her two pups, Cin and Zara. She is also an avid fitness enthusiast, an amateur baker, and a self-proclaimed foodie.

Dr. Shawna Westmark Cobb Veterinary Clinic

Jessie Olivo, DVM

Dr. Olivo was born in New Orleans, Louisiana, and raised in Houston, Texas. Growing up surrounded by animals, including cats, dogs, pocket pets, and horses, she developed a deep love for all creatures. Inspired by her family of medical professionals, she pursued her dream of becoming a veterinarian. Dr. Olivo graduated from Texas A&M University in 2019 with a bachelor’s degree in Biomedical Science. While at A&M, she discovered a love for wildlife and exotic animals while working at the campus Wildlife Center. After graduation, she worked as a small animal veterinary assistant before moving to Phoenix, Arizona to attend Midwestern University for veterinary school. While at Midwestern, she developed a passion for mixed animal medicine and being able to practice on all species. Her love for working with large animals developed further during her clinical rotation year where she spent a few weeks in the Navajo Nation to work on cattle and horses. She graduated from Midwestern in 2025.

Dr. Olivo has a passion for all things related to preventative care and wellness for cats and dogs. While she loves working with all large animal species, she especially loves working with goats, sheep, and pigs. Because of her experience in the Navajo nation and working at various spay and neuter clinics, Dr. Olivo is looking forward to better serving her community and providing accessible care for pets of all shapes and sizes.

When not working with other people’s animals, Dr. Olivo enjoys spending time with her own dogs; Presley, Paxton, and Nugget. She also enjoys spending time with her husband, Frank, and their friends. She loves being outdoors whether that’s hiking or just laying outside by the pool. She also loves reading, doing puzzles, and catching up on her favorite TV shows.

Vanessa

Katy

Practice Manager

Katy's Bio

Practice manager and technician, Katy is passionate about her job! Katy is born and raised in Oklahoma. She graduated from Oklahoma State University in 2022 with a Bachelor’s degree in Animal Science minoring in Microbiology. She started her time in vet med as a technician and quickly grew into the manager role. Her favorite animal to work with is a toss-up between cats and cattle. In her free time, she enjoys going to sporting events, building legos, and spending time with her husband and cat, Mr. Kitty!

Sandy

Sandy's Bio
Sandy has been with Cobb Vet Clinic for a little over a year and has eight years of prior tech experience with an animal clinic in southern Indiana. She has been married to her husband Terry for 30 years, and they have one son, TyDaniel. Her family is very involved in team roping. Sandy has a French Bulldog named Gurtie Sue, a Border Collie named Millie, a miniature horse named Little Man, and two Quarter Horses named Tiny and LB. Sandy is a lover of all animals, but dogs are her favorite. Sandy’s favorite things to do are vacation at the beach or float in the pool.

Laura

Laura's Bio

Laura started at Cobb Vet Clinic as a receptionist in late 2021. She is a West Texan born and raised. Laura has a soft spot in her heart for all things farm animals and plans on pursuing that love further. In her free time, she loves to be outdoors – rain or shine, catching a baseball game, or reading a book.

Mikayla

Mikayla

Mikayla's Bio
Mikayla is a veterinary technician that has a love for all things animals and outdoors. In her free time, she enjoys hiking, listening to live music, and hanging out with friends and family. She has a border collie named Remi that loves to play fetch, eat shacks and go for swims.”
Vanessa

Hannah

Hannah's Bio
Hannah started at Fix West Texas in 2021 and has been in the vet industry ever since. If she isn’t at work, she’s pet sitting or at home with her sweet cat. She has a deep passion for all things animals! She can’t imagine doing anything else with her life!!
Vanessa

Ashlee

Ashlee's Bio

Ashlee is new to vet med, but not new to customer service. With previous work experience in the human medical field, she brings a wealth of knowledge. Her love for people and animals has led her down the right path to Cobb Vet Clinic as a receptionist. In her free time, she likes to spend time with her family and her spoiled Frenchie, Cash.

Mikayla

Kaitlyn

Kaitlyn's Bio

Bio coming soon!

Mikayla

Kelsi

Kelsi's Bio
Kelsi is an experienced animal care professional with over three years in the field and a lifelong background rooted in farm life. Her passion for animal rescue has led her to foster more than 150 animals, while her deep love for cattle and equine continues to shaper her hands-on approach to care. Kelsi is also a proud mom to her son and shares her home with Bmo, a spirited rescued border collie.
Mikayla

Gloria

Gloria's Bio
Gloria began working in vet med at 16 years old as a kennel assistant after school. She loves being around animals and being able to help in their care. She graduated from ASU with a Bachelor’s degree in Agricultural Science. She began her technician journey at WTEVC in Odessa where she learned the workings of emergency medicine. Gloria is happily married and has a beautiful daughter. After having her daughter in 2019, she moved to a general practice as a technician. She learned more about companion animals and how to care for them. Now at Cobb, she is fulfilling the dream of working with large animals.