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The Veterinary Behavior Center

Find peace in the best care possible.

A veterinary behavior and psychiatry practice based in Boulder, Colorado serving the Front Range and beyond.

For medical emergencies, contact your local primary care or urgent care veterinarian

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As a veterinary behavior specialist team, we have the unique ability to alleviate suffering by treating both the body and mind of patients who need us.  

We engage in patient-centered, client-tailored and doctor-led service.  We work with you as a team.  We believe that the best way to help our patients is to empower pet parents by giving them the tools they need to help the animals in their care.  Utilizing learning science and veterinary psychiatry, each diagnostic and treatment plan is personalized, prioritized and practical. 



horse behavior

Repetitive behaviors
House soiling
Prep for Baby
Separation-related behaviors

dog attention

Self-injurious behavior

Attention-seeking behavior

Leash reactivity

Trailering problems

Feather-damaging behavior

german shepherd behavior

Excessive vocalization
Elderly behaviors
Inappropriate cat scratching
Unruly behaviors
And more...


bird behavior



Comprehensive care from our veterinary behavior team for pets of any species and their parents in Northern Colorado and beyond.


Vet-to-Vet Teleconsults

A service for veterinarians, for help with your canine or feline behavior case.  Anywhere.

A unique fusion of hands-on support from our Behavior Therapy Technicians and teleconsult service to your veterinarian.  Fully virtual possible!

Cookapoo Dog

Behavioral Coaching

Whether referred by your veterinarian for a diagnosed behavior problem, or you come to us seeking help yourself, we can provide you the behavior modification support you need without getting one of our doctors involved.

Dog Walk

Learn. Teach. Play.

Build Community. Have Fun.

Business Meeting


Need an expert in veterinary behavior?  We love projects!  Contact us with additional details.

Animal Welfare Services

For the hard decisions.

Planning for their best life.

Feline Friend


From Nail Club to our premiere support program, maximize your investment and your success

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Shelters & Rescues

Consulting services for individual patients as well as development of organizational level behavioral health plans

Zoos & Wildlife Sanctuaries

Individual patient or colony assessments as well as development of organizational level behavioral health plans

canine camping



Loose Leash Walking
Pleasant walks are within reach!  Our very own curriculum provides you with all the tools and personalized attention you need to have the enjoyable walks you want.

6Ds Method of Relaxation (virtual)
Emotional self-regulation is a skill we all need to learn how to do, our canine friends included.  Teach your dog how to downshift on cue with this time-tested method we use in even our most rambunctious and triggered patients.

Kit & Kaboodle 
Is your cat living a boring life at home?  Overweight?  Annoying you for attention or food? Struggles with nail trimming or medicating?  Set your cat up for success with this virtual people-only education class on how you can build resiliency, engagement and comfort for your feline.  Feline good! 

See our CLASSES page for more info.  Hope to see you there!

We all have enough stress right now - let us help you with what we do best. 

kitty behavior


Courtney K.

with Gretta May

Dr. Fagen is professional, compassionate, and extremely knowledgable.  Taking my dog to Dr. Fagen was truly the best decision I have ever made.  Dr. Fagen helped my dog and I get through separation anxiety when nobody else could and I am extremely grateful.  Working with her was a delight and her recommendations were easy to implement.  I'm a professional dog trainer and even we need help sometimes.


with Fernando

Dr. Fagen helped us to course correct when our beloved sixteen-year-old Persian began acting out two years ago.  He was defecating out of his litterbox, and the situation was creating a great deal of stress for us both.  She was able to examine him and physical causes for his stress symptoms. Also, she offered us coaching on how to more efficiently and kindly treat the behavior.  I would highly recommend her to any person ready to have a healthier and happier feline at home.

Cara & Ben

with Yogi & Rocket

We are so grateful to Dr. Fagen for her help with prepping our dogs for the arrival of our baby! We have been so worried about how our dogs would react to the change, and Dr. Fagen was extremely thorough, giving us all the tools to be able to feel safe and secure in preparing for this big moment in our lives.

Dr. Reiter

with Greta

Dr. Fagen is a fantastic behavior doctor. She cares deeply for her patients and has the education needed to help your dog or cat with any behavioral concerns. She will do a very thorough assessment of your pet and will be with you every step of the way to monitor progress. I highly recommend her!


Tel. 303-536-1802

The Veterinary Behavior Center

5345 Arapahoe Ave., Unit 7

Boulder, CO 80303







9am - 5pm

9am - 5pm

9am - 5pm

9am - 5pm

9am - 3pm

Closed New Years Day, Independence Day, Memorial Day, Labor Day, Thanksgiving Day, Thanksgiving Friday and Christmas Day.  Early closures on New Years Eve and Christmas Eve. 

Boulder, Northern Colorado, Front Range, veterinary, veterinarian, veterinary behavior, veterinary behaviorist, animal behavior, animal behaviorist, animal behavioralist, dog trainer, veterinary psychiatry



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border collie behavior
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