About Us

Meet our staff of experienced veterinarians and technicians.


Our veterinary clinic is fully accredited by the American Animal Hospital Association based on a quality review of our veterinary practice methods, pet health care management, facility and equipment in addition to a stringent evaluation of more than 900 standards in patient care, client service and medical protocols. Only 12 percent of small animal hospitals in the U.S. have achieved this accreditation.

Our Veterinarians and Staff

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      Holly Cogswell

      Doctor of Veterinary Medicine & Practice Owner

      Dr. Cogswell has owned and led Aurora Animal Hospital since 2003. A graduate of Colorado State University, one of the world’s leading veterinary schools, she also completed an externship at the prestigious Angel Memorial Animal Hospital in Tokyo and received her Certification in Veterinary Acupuncture from CSU. Caring and experienced, Dr. Cogswell is a veterinarian whose life-long love for animals pushes her to care for your pets as passionately as she does for her own. A Colorado native, Dr. Cogswell looks after a furry family including kitties Ling, Bodhi, and Scout, a rabbit named Rosco, and a mutt named Chico.

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      Aziz Chughtai

      Doctor of Veterinary Medicine

      Dr. Chughtai is a graduate of the Cummings School of Veterinary Medicine at Tufts University and he also holds a Masters of Public Health degree. Innovative and thoughtful, Dr. Chughtai brings great care for the well-being of his patients and their owners in all that he does. Dr. Chughtai shares his home with kitties Lao-Tzu and Siddhartha.

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      Stefanie Tande

      Doctor of Veterinary Medicine

      Dr. Tande earned her Doctor of Veterinary Medicine Degree from Tufts University in Boston after earning a degree in Biochemistry from Case Western Reserve University. She completed an internship at Wheat Ridge Animal Hospital before joining our team. Caring and enthusiastic, Dr. Tande is gifted in her knowledge of current veterinary practices and has special interests in preventative care, dentistry, geriatric care, and internal medicine. A native of North Dakota, Dr. Tande lives with kitties Lao-Tzu and Siddhartha.

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      Dayna Willems

      Doctor of Veterinary Medicine

      Dr. Willems earned her Doctor of Veterinary Medicine Degree from the prestigious Texas A&M University after completing her Biomedical Science degree. Dedicated and compassionate, Dr. Willems has special interests in preventative care, emergency medicine, surgery, and exotic animal medicine. A Texas native, Dr. Willems has a large animal family including dogs Moki and Bogart, cats Izzy and Pangur Ban, chameleons Oscar, Loretta, Buster, George, Oliver, turtles Calvin and Hobbes, tortoises Keeva and Pancakes, axolotls Ariel and Ponyo and iguana Franklynn.

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      Ashley Larson

      Practice Manager

      A devote animal lover, Ashley keeps our practice running efficiently so your experience with us is smooth and reliable. She’s committed to your satisfaction, and to making sure your pets always recieve the best possible care. A Colorado native, Ashley’s brood includes dogs Tiger and Diver and cats Olive Oyl and Mowgley.

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      Christina McGruder

      Certified Veterinary Technician

      A recent graduate of Bel-Rea Institute, Christina started with us as an intern and she’s joined us as a Veterinary Technician. Her warm smile and caring touch will put even the most anxious pet at ease. A Colorado native, Christina lives with her dog Bella.

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      Kelley Holmes

      Customer Care

      Kelley’s compassion for animals and passion for customer service will welcome you when you walk through our doors. As our head receptionist, she’s responsible for making sure your visit is smooth and always a great experience. A Colorado native, Kelley also cares for Cyrus the dog, Ru the bunny, and leopard geckos Puka and Zulu.

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      Lindsay Hancock

      Veterinary Assistant

      Lindsay’s making her love for animals her profession as she studies to become a Certified Veterinary Technician at the Bel-Rea Institute. Lindsay is passionate and committed to helping your visit with us be a great experience. Originally from Connecticut, Lindsay lives with her dogs, Brodie and Mango.

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      Susan Holtz

      Veterinary Assistant

      Susan is committed to treating your animal companions with compassion and care in her role as one of our skilled Veterinary Assistants while she attends school at Bel Rea to become a Certified Veterinary Technician. A California native, Susan loves on Sadie the dog.

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      Kate Byrne

      Customer Care & Veterinary Assistant

      Kate loves animals and making sure our customers receive the best service and care possible. She’ll do her best to make your visit with us a great experience for all. Her future plans are to attend school to become a Certified Veterinary Technician. Kate and her bunny Missy Elliott moved to our community from Colorado Springs.

    • Mistie Pruitt

      Mistie Pruitt

      Certified Veterinary Technician

      A graduate of prestigious Bel-Rea Institute with an applied science degree in Veterinary Technology, Mistie brings over 8 years of experience to our hospital. Mistie moved here from Alabama and shares her home with two dogs, Leighlou and Brody, and a cat named Rikku.

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      Shawn Bowers

      Certified Veterinary Technician

      A graduate of leading Bel-Rea Institute, Shawn brings nearly 10 years of experience in veterinary medicine. She brings her experience and skill to the exceptional care she provides our patients. A native of California, Shawn has a big family including dogs Doug the Pug, Annabelle, Eddie Mac and Lucy; kitties Theodore, Stanley and Simon; and fish!

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      Meg Fry

      Veterinary Assistant

      Currently studying for her Certified Veterinary Technician degree at Bel-Rea Institute, Meg brings her enthusiasm and great care for animals to working with our team and patients. A native of Ohio, Meg loves on her dog Gaia.

The Scratching Post

Why does my dog eat grass?

Why do dogs eat grass?  Because it tastes good!  Ok, wheat grass shots are nasty – but if all you get is dry processed dog food, you start hankering for some salad.  The sweet dogs we share our lives with are no longer very similar to their ancestor carnivores.  Domesticated dogs are considered omnivores, or […]

on April 2nd, 2013 // No Comments »

Marijuana and pets

It used to be we would see canine marijuana ingestion cases – (cats are too smart!) once or twice a year. Owners were shy to admit the reason for the emergency visit, but usually came around. But in today’s community, post medical marijuana legalization, we are seeing a four-fold increase in pets not only getting […]

on November 7th, 2012 // No Comments »

Vegetarian Cats?

Vegetarian Cats? People choose not to eat meat for various ethical, environmental, and health reasons. Some omnivores, like humans and dogs, can live longer, happier lives this way with a little thought put into their diets. For people, it’s not hard to be a healthy vegan if you don’t live on fries and cola and […]

on October 17th, 2012 // 1 Comment »