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Our Team

Meet our caring and compassionate veterinary care team!

Dr. Caitlin Riggs


Dr. Caitlin Riggs loves hiking and agility training with her two border collies. She even competed at the National Agility Championship in Tulsa, OK in March of 2022. She spends most of her time with her dogs and would like to evenly own a flock of ducks and herds of sheep. The Colony Animal Hospital Practice Manager says that working with Dr. Riggs has been fantastic! She is an awesome person and amazing doctor. She’s smart, funny, down to earth and loved by all pets, clients and staff.

Eva Prenger, LVT

Licensed Veterinary Technician

Eva has been working in the veterinary field since 2012. She started as an assistant at a combined general practice and ER in Milwaukee and then worked at a small animal and exotics practice and achieved her license as a Certified Veterinary Technician. Eva then moved to Virginia in 2023 and joined the Colony team as a Licensed Veterinary Technician in 2024. She loves helping pets and their families every day, but especially through the sometimes unexpected and difficult times where they need a little more empathy and care.
Outside of work, she enjoys hiking, kayaking, crocheting, hand embroidery, and family activities with her husband and two kids. Eva has two dogs, a chihuahua and a supermutt, a cat, and a fish tank!

Mary Romine, LVT

Licensed Veterinary Technician

Mary joined the Colony team in October of 2022, but she has been working in the veterinary industry for 20 years! She started as a tech in a 24-hour hospital and moved through a couple of different hospitals and clinics. Mary ended up at another 24-hour hospital and was promoted to Technician Supervisor and after a few years was promoted to Practice Manager. She moved from Texas to Virginia in October 2022 with her husband and pets. Mary grew up on a dairy farm in Vermont and knew from a very young age that she would have a career working with animals. She loves talking to clients about their pet's health and what they can do to help their pet live as long and as happily as possible. Outside of the hospital, she enjoys the outdoors, hiking, walks, the beach, gardening, and spending time with her own pets. Mary has 11 pets total - 5 dogs, 2 cats, and 4 rats!