Your Trusted Veterinary Team in San Antonio, FL



Dr. Diana Joyner-Mattox


Dr. Diana Joyner-Mattox graduated from Zephyrhills High School in 1986 and then enrolled at Pasco Hernando Community College, where she earned an Associate in Arts degree while working full-time as a veterinary assistant. Dr. Diana transferred to the University of Florida as a Junior and graduated in 1991 with a bachelor’s degree in Animal Science, and continued on to earn her degree in Veterinary Medicine from the University of Florida, College of Veterinary Medicine in 1995.

In May of 1997, she started her own small animal practice in a small converted home with 1 employee. The practice has grown in leaps and bounds over the last 22 years and expanded into a new 3600 sq-foot state-of-the-art facility in December of 2003.

Dr. Joyner-Mattox’s family includes her husband Casey, stepdaughter Lynsey, one dog named Brandy, five rescue horses, and five rescued cats. In her free time, she enjoys spending time at home, traveling, hiking, scuba diving, horseback riding, and reading.

Dr. Joyner-Mattox was a member of the Pasco County Animal Services Advisory Committee for more than 10 years. She was the Founder and President of Spay Pasco, a non-profit spay/neuter assistance organization, and was awarded the Gold Star Award by the Florida Veterinary Medical Association for her animal welfare advocacy in Pasco County.

September 18, 2010 – Dr. Diana Mattox was awarded The Judy Schwartz Humanitarian Award by the Humane Society of the Nature Coast. This honor is “awarded to an Individual, Organization or Company who has made a significant impact on animal welfare locally or nationally,” and in 2014, Dr. Mattox received the Distinguished Alumni award from Pasco Hernando State College.

San Antonio Animal Hospital coming soon

Dr. Carolina Neves


Dr. Carolina Neves was born in Brazil and raised in the U.S.  She speaks fluent English, Portuguese, and Spanish.  She attended the University of Kentucky for her undergraduate degree and her doctorate in veterinary medicine from Ross School of Veterinary Medicine. Her professional interests include soft tissue surgery and dermatology. During her free time, she enjoys traveling, rowing, and spending time with her family and her pets. She has two cats: Kyle and Jolene and two dogs: Khloe and Elton. 




Practice Manager

Devin was born and raised in the Tampa area. She is a graduate of USF with a bachelor’s degree in Anthropology. From an early age, she knew she wanted to work with animals and started working as a veterinary technician in 2012.
Devin has worked at San Antonio Animal Hospital since 2014. She moved to the San Ann area in 2021 and loves the small-town feel. She shares a home with her husband, their son, and their 2 dogs Bruin and Minnie.

When she is not working, Devin loves to spend time with her family and friends. She enjoys music, relaxing outdoors and going camping. Devin is currently enrolled in school to obtain her Veterinary Technician certification.



Practice Manager

Stephanie relocated from Amarillo, Texas, to London, England, when she was just 3 years old. After studying and obtaining a degree in Fashion Design and Technology, Stephanie decided to pursue her other passion – animals. Growing up, she was always surrounded by animals, from hamsters to horses, and greatly enjoys being able to greet all our clients and their fur babies when they come in.

Stephanie now resides in Dade City with her husband, daughter, and an ever-growing squad of cats. In her spare time, Stephanie enjoys traveling, going to concerts/festivals, reading, and drinking coffee.

Veterinary Technicians



Veterinary Technician

Abby was born and raised in the Dade City Area and has always been surrounded by animals (large and small!)

It is safe to say she is an animal lover, as she currently shares her home with cows, donkeys, goats, horses, dogs, cats, squirrels, and a parrot!

Abby will be graduating in 2021 with a Bachelor’s degree in Psychology and a minor in Applied Behavioral Analysis.

Her childhood dream is to establish a therapeutic riding center for disabled children and be able to share her love of horses.

In her spare time, Abby enjoys kayaking with Waylon (her Great Pyrenees), horseback riding, and practicing trick riding.



Veterinary Technician

Lisa was born and raised in the Dade City area.   Lisa began her adventure in the veterinary world with hands-on experience at the age of 14 years old.

She has attended several lectures from anesthesiology to fear free practice and strives to excel in the veterinary field in any way possible.

Lisa’s hobbies include poetry, the outdoors and spending time with her many four-legged babies.



Veterinary Technician

Chas was born and raised in Colorado and relocated to Florida for the sunshine and more opportunities in 2021. From a young age, she knew she wanted to work with animals. She is currently studying in a Vet Tech program, and her goal is to earn her degree in Veterinary Medicine. She enjoys time with her church, spending time at home, video games, traveling, snowboarding, hiking, and camping.

She currently has one dog and two cats that love to come on adventures and keep her on her feet!



Veterinary Technician

Jen discovered her passion for taking care of animals back in 2018. She joined the San Antonio team in 2023. Jen’s hometown is Lutz, Fl and she moved to Dade City in 2022. In her free time, Jen enjoys going on walks with her dog, Chapo, shopping with friends (and on Amazon!) and also enjoys being on the water.





Amy was born and raised in Colorado. She has a bachelor’s degree in Psychology from Metropolitan State University of Denver and an associate’s degree in Zoo Animal Technology from Pensacola State College where she got to work with a variety of exotic animals and also met her husband who now works in coral conservation.

Amy loves adopting anxious dogs and helping build their confidence; and has taught one of her dogs to use several buttons to communicate.

In her free time Amy loves kayaking with her husband and dogs, snorkeling and attending musical theater.