About

Dr. Susan O’Brien followed her life-long aspirations of becoming a veterinarian.

She graduated from the Atlantic Veterinary College in 2010 with a Doctor of Veterinary Medicine degree. She is a 2006 graduate of Sweet Briar College in Virginia with a Bachelor of Science degree in Biology.

In her final year of veterinary school, Dr. O’Brien completed a rotation in a rural Peruvian village treating dogs, cats, donkeys and horses. It started a drive to continue philanthropic efforts and volunteerism throughout her career.

Following veterinary school, Dr. O’Brien completed a year-long extensive internship at a mixed animal practice in her native Ohio. She stayed on as an associate veterinarian at this practice for two years once she completed the internship in July of 2011. A lot of her focus during this time was general medicine and emergency care of horses, dogs and cats. She made the move to Colorado and began working at a small animal veterinary clinic while she developed her business.

Her inspiration behind Colorado On-Site Veterinary Services was to provide enhanced preventative care of dental maintenance, vaccination protocols, strategic deworming as well as nutritional guidance to maintain optimal health. She pursued several advanced certifications in the modalities of acupuncture, chiropractic care and laser therapy in order to offer a full array of services to her patients. Dr. O’Brien is certified in veterinary acupuncture by Medical Acupuncture for Veterinarians. She is certified in chiropractic care by the International Veterinary Chiropractic Association and the Options for Animals College of Veterinary Chiropractic.

In her free time, you’ll find her riding, hiking, fishing and enjoying the great state of Colorado with her husband Kenny and daughter Violet. They share their home three dogs, two cats, a haflinger and two quarter horses and a host of ducks and chickens.

Elizabeth is a Florida native and grew up on the water snorkeling, wakeboarding, and commercial fishing with her family.

After living in the Bahamas for 2 years, she moved to Colorado in 2016 and pursued a certified veterinary technology degree, graduating in May 2020. Her interests include photography, hiking, camping, and wildlife. With her degree in Zoo Animal Technology, she really enjoys meeting your scaly and feathered friends! You may have seen her golden retriever pup Oberyn (or "Obi" for short) around. We all adore the little rascal and are happy to have him join the team as well!

Originally from Pennsylvania, Phoebe moved to Colorado in 2014.

After moving around the state from Durango to Denver, she found herself in the Valley to complete a degree in Veterinary Technology at Colorado Mountain College graduating in May of 2021. With a background in small animals, she quickly discovered her passion for animals of all sizes and species, which is how she found herself at On-Site Veterinary. Phoebe is a fur-mom to two dogs Biggie and Archie, Harley the cat, and Snakey the snake. In her free time, you'll find her working towards her goal of summiting all of Colorado's 58 14ers, rock climbing, and running various trails training for her next big race. 

Alexis is a true Coloradan and has spent most of her life in the mountains.

Raised around animals, she has two dogs, two cats, and a horse named Poncho. Alexis has worked with Dr. O’Brien and the On-site team for the past five summers and will be applying to vet school next spring. She is currently studying Biomedical Sciences at Colorado State University while also pursuing her interest in cell and molecular bioengineering research. In her free time, Alexis enjoys spending time with her horse and exploring Colorado with friends.

Growing up a military brat, she moved around frequently.

She calls Georgia home as that is where her dad retired. After marrying her husband and his tenure with the military, they moved to Colorado in 2017. She worked at Vail as a snowboard instructor to children ages 7 to 14 but she felt something was missing in her life. She has always had a love for animals and decided to finally pursue her degree in Veterinary Technology at Colorado Mountain College. She will be graduating in 2023 to become a Certified Veterinary Technician. After working on the farm at the college, she realized she wanted to work with all species of animals which led her to On-Site Vet. She has two fur children of her own, Abby the Pek-a-poo and Kodi (Kodiak) the German shepherd. In her off time, she loves to be outdoors camping, hiking, and snowboarding.

Dr. Steve comes to us from Ocala/Marion County, Florida, The Horse Capital of the World.

Here he solo practiced for over four decades. He worked a predominantly thoroughbred broodmare practice evolving into a multifaceted practice with the addition of exotics and student doctor clerkships from University of Florida. For over twenty years, he earned the moniker of FatherDoctorMister Murphy with his service to Sunshine Region Pony Club. He was a designated Dad to Pony Clubbers at rallies, Doctor to his patients, and a liaison to parents. He then made the move to Colorado with his high school sweetheart Teresa to be near their daughter, an equine veterinary surgeon. Along came homebred thoroughbred Booker, two miniature ponies, two German Shorthaired dogs, two cats, and an African Grey named Westly.

Kailea is a high school student gaining experience under the supervision of Dr. O’Brien and the On-Site Vet team.

She is learning how the veterinary clinic operates and observing patients' treatments. She plans to further her education in the fields of veterinary medicine, animal and environmental sciences in college after graduating high school. Having lived in Eagle her entire life, she has grown up loving the nature surrounding the valley, along with the community and animals inside of it. Through volunteering with the local non-profits, Mountain Valley Horse Rescue and 10th Mountain Equine, Kailea learned about horses leading her to develop a passion for working with and helping animals. She is enthusiastic to have the opportunity to take the next steps towards her future learning from the team at On-Site Vet. Her fur family consists of two dogs, Scout and Oakley, and two horses, Satin and Sundance, all whom she loves dearly. Kailea spends her spare time reading, cooking, cuddling with her dogs, volunteering for local organizations, perfecting her archery skills and hanging out with her horses.

Karely was born and raised in Colorado.

She has grown up around horses, dogs and other farm animals. After graduating, she wanted to find a job that would suit all of her interests and that is how she found On-Site Veterinary. Karely loves helping others, being able to work around animals and provide our team any help that they need. In her free time she loves to do anything involving nature or traveling. She also values quality time with her family and friends.

Growing up in Hayden Colorado, there wasn't much to do besides enjoy the outdoors.

Joey moved to Glenwood Springs after graduating highschool in 2020 to pursue her degree in Veterinary Technology. She will be graduating from Colorado Mountain College in 2023. After moving to Glenwood Springs, she realized she wanted to work with all animals, but her favorite species is cattle! Her love for large animals is how she ended up at On-Site Veterinary. She currently has 5 animals: two cats named Sirus and Sampson, a dog named Brutus, a rabbit named Stanley and a rat named Tilly. In her free time she enjoys cooking, puzzles, hiking, and paddle boarding.

Originally from Michigan, Kendra moved to the valley in 2008.

She shares her home with her two dogs (Ryu and Warri), two cats (Yoruichi and Kapuchin), and two horses (Concho and Elu). She has worked with both small and large animals since her first job at a local animal shelter at 14 years old. Her passion in life is riding her horses; whether it’s on the mountain trails, through a mounted archery course, in the dressage ring, or wielding medieval weaponry in mounted medieval games competitions. When she is not in the saddle, she is exploring the great outdoors with her dogs.

Gayle is our 17-year-old clinic cat.

She is THE boss and runs the show around here! Surrendered to a local animal shelter, she was adopted and brought to On-Site Veterinary, quickly realizing this was her forever home. In her free time, she loves napping under the covers on the couch, watching the team eat their lunches (and trying to steal a bite), and curling up on any lap that she can. She is sassy, spunky, and incredibly charismatic. She always has something to say! Gayle really completes our team; we all love her so much.