Veterinarian in Fort Collins, CO 

If you live in Fort Collins or the surrounding area in CO, then you have picked the perfect site to find your pet's full-service veterinary hospital and activity center. Your pet is an important part of your family, and when he or she is ill, you want the best medical care available.

Welcome to Advanced Animal Care of Colorado

Your Veterinary Hospital in Fort Collins, CO
Call us at 970-818-5054


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The veterinarians and staff at Advanced Animal Care of Colorado are ready to provide your pet with cutting edge veterinary medical care. From preventative health and wellness care to advanced diagnostics and complex surgical procedures, your dog and cat will receive high quality care at our hospital.

Advanced Animal Care of Colorado is a full service animal hospital and will take both emergency cases as well as less urgent medical, surgical, and dental issues. We are proud of our state of the art facility and comfortable, inviting, sparkling clean environment where your pet can relax in the waiting room and look forward to meeting his or her own Fort Collins veterinarian.

Advanced Animal Care - Entrance at NightWe have a number of resources for you to learn about how to take better care of your pets. Our facility houses all your pet care needs from grooming and swimming to medical care, dog daycare, pet lodging and more. We invite you to browse the website and look at our articles and pet videos to get to know us better. We'd love to hear from you, so please call 970-818-5054 or email us,, and we'll promptly get back to you. We are very easy to find, and directions are available on our Contact Us page. You are personally invited to stop by for a tour of our facility at anytime - no appointment necessary!

Advanced Animal Care of Colorado & DOG TALES Activity Center will treat your pets like the valued family members they are.


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Featured Articles

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  • Put Some Teeth Into Your Pet’s Dental Care

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Meet Our Veterinarians

Learn Who We Are

  • Brittany Alvillar
    MS, DVM, cVMA

    Dr. Brittany Alvillar is a Colorado native from Littleton, CO. At a very young age she had a special love for animals and at the age of 10 she knew she wanted to be a vet. With that goal in mind, she received her B.S in Biology and Zoology from Colorado State University in 2006, and an M.S. in Biomedical Science and Neurobiology in 2007. During this time she became very interested in the nervous system and how it related to chronic pain management.

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  • Morgen Deramus
    DVM, cVMA

    Dr. Deramus is a Colorado native, born in Denver and raised at the foot of Pikes Peak, in Cascade, Colorado. As a child, she spent the majority of her time running around the mountains and collecting a menagerie of animals.  

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Contact Us


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Office Hours

Our Regular Schedule


7:00 am -7:00 pm


7:00 am -7:00 pm


7:00 am -7:00 pm


7:00 am -7:00 pm


7:00 am -7:00 pm


7:00 am -4:00 pm




Read What Our Clients Say

  • "We love our vet and feel like her medical knowledge is very good. Our sick puppy, Snickers, was well cared for by the staff when he was sick last year and now he acts younger and healthier than ever so we know they know what they are doing."
  • "The staff has always been amazing. They treat our pets and us so well. I love that they know who I am when I walk in. They go the extra mile to make sure our pets and myself have as good of an experience as possible."
  • "Erika and Dr. Alvillar we absolutely amazing with Hank. I recently adopted him and he was pretty scared. The gals sat on the floor with him to make him comfortable."
  • "Great facility. Great attentive staff. Great grooming department. Great daycare. Even a swimming pool!"
  • "Kayleigh, our dog’s groomer is the best. Roscoe loves her for a good reason. She and her assistant did an amazing job. We know how good she is because we started seeing her after a terrible experience at dog parlor"
  • "The grooming staff members are incredible! Nail trims are very stressful for my dog, but they work hard to make the process as comfortable for him as possible. It's a huge relief to know we can count on them for a positive experience."
  • "The staff are very friendly and helpful, the facility is clean and I always feel like my dog is safe and well cared for."
  • "We used the pool for the first time this week, and it was clean, we had everything we needed, and it was just an overall great introduction to the pool. We made an appointment for next week too!"
  • "I have never met a more caring, informed, well-trained and competent group of people. From the front desk to the energetic keepers of our dogs well-being I trust you all with such a level of knowing that you have your eye, ears and heart on Harley Pearl as if she were your own."
  • "The staff is always friendly and give a genuine feeling they care about my pup when I bring him in for doggy daycare."
  • "Our vet is very sweet and great with all of our crazy pups! The entire staff has been nothing but extremely helpful and kind to us!"
  • "My experience is perfect. More importantly however, it is Harley that is eager to jump out of the car, excited to see everyone, and is loved by her caretakers. If she were not, she would not get out of the car with such exuberance. Believe me when I tell you - she knows where she wants to go and where she does not want to go. Thank you to every single member of your staff."
  • "We love Advanced Animal Care of Colorado, we started bringing our black lab, Keira, here when we moved here from Florida and have never been disappointed! Great service every time, they always lay out options and recommendations, but never force extra tests/shots/etc on us. We get the final say, which I appreciate. We've gone to vets before where we were shamed if we opted out of a certain service, and that doesn't happen here. We got Keira spayed here just yesterday and Dr. Deramus did an awesome job! Keira is doing great! Thanks for taking such great care of our girl! We love AACC!"
    Brooke C.