Comprehensive Veterinary Care for All Animals
We are committed to delivering high-quality, stress-free veterinary care for dogs, cats, horses, farm animals, and exotic pets in the surrounding area. With a unique blend of mobile and in-hospital services, we deliver expert veterinary care at our fully equipped clinic — or bring it directly to your home, barn, or farm.
We focus on providing stress-free care for your pets and livestock, prioritizing preventitive care, dental services, emergency support, and integrative therapies—all tailored to keep them healthy and thriving. We’re excited to meet you and your pet—join the On-Site Veterinary family and experience personalized care you can trust.
Emergency Care
Emergency & urgent care for established patients with in-hospital surgical recovery & monitoring
Wellness Care
Comprehensive health exams, vaccinations, parasite prevention, nutritional counseling, and wellness plans for all species
Integrative Medicine
Acupuncture & chiropractic care for mobility, performance and laser therapy for healing & inflammation reduction
Equine & Farm Animal
On-site gastroscopy, performance evaluations, herd health, reproductive care, vaccinations, health certificates, and more
Our experienced veterinarians and staff are dedicated to providing personalized, stress-free care for every patient.
Our team is dedicated to providing the highest level of care for your pets. Our clients consistently praise our staff for their kindness, attention to detail, and thoroughness in caring for their animals. Dr. O’Brien and the entire team take great pride in ensuring every pet receives personalized care, creating a welcoming experience for both pets and owners. We’re honored to be trusted with the health and well-being of your animals.
Why Choose On-Site Veterinary?
We offer a wide range of services designed to meet your pet’s needs, wherever they may be. Our flexible mobile and in-clinic care ensures your pet gets the attention they require, whether at home or in our office. We provide specialized dentistry and advanced diagnostics, including digital X-rays, gastroscopy, ultrasound, and echocardiograms, to give your pet the best care possible.
With our dedicated Comfort Room, friendly staff, and a focus on low-stress handling and patient comfort, we ensure a calm and anxiety-free experience for every visit. Our emergency and urgent care services are available after hours for established patients, providing peace of mind when you need it most.
For your equine and large animal needs, we offer expert care for horses, livestock, and farm animals. Additionally, we provide educational resources for pet owners, including first-aid guides, how-to videos, and helpful tutorials on YouTube.
Excellent Staff
“They were Kind and caring with my dog. No detail was overlooked concerning the health and well-being of my pup. I will highly recommend Susan and her team to anyone looking for the best health care for their pets.”
– Justin W.
Truly Grateful
“We love Dr. O’Brien and her team. They take very good care of my girls and make sure they are as healthy as they can be. Truly grateful for their kindness!”
– Jennifer D.
Cozy Exam Rooms
“The whole staff makes us feel special. We like the cozy exam rooms and how they stagger patients so we’re not stuck waiting in the front with other animals and parents.”
– Laurie B.
#1 In Our Hearts
“Susan O’Brien and the On Site team are #1 in our hearts! Our dogs and horses adore them too, and the dogs can’t get into the office quick enough!”
– Tammy B.
Top Notch
“My K9 Pax had a watery eye. I sent pictures to Dr. O’Brien’s office. She identified the problem and made an emergency appointment that day. That shows a true concern. Entire staff, top notch.”
– Doogs B.
Thank You for Trusting On-Site Veterinary
We are honored to be your trusted veterinary hospital in Eagle, CO. Your pet’s health and well-being are our top priorities, and we look forward to providing you with expert, personalized care.