Welcome to Windhorse Veterinary Clinic
Your Veterinarian in Spencer, SD

Call us at 605-246-2854
Pet Emergency? Call us right away at 605-246-2854


If you live in Spencer, Alexandria, Emery, Farmer, Epiphany, Howard, Mitchell, Salem or the surrounding area and need a trusted veterinarian to care for your pets – look no further. Dr. Teresa Roster is a licensed SD veterinarian, treating all types of pets. Your pets’ health and well being are very important to us, and we take every possible measure to give your animals the care they deserve.

Windhorse Veterinary Clinic is a full-service animal hospital and welcomes both emergency treatment cases as well as pet patients in need of routine medical, surgical, and dental care. Dr. Teresa Roster has years of experience treating serious conditions and offering regular pet wellness care. Beyond first-rate pet care, we make our clinic comfortable, kid-friendly, and calm, so your pet can relax in the waiting room and look forward to meeting our Spencer veterinarian.

We are happy to offer a number of resources that enable you to learn about how to take better care of your pets. Please feel free to browse our site, particularly the informational articles. The best veterinary care for animals is ongoing nutrition and problem prevention, so becoming knowledgeable about preventative pet care is essential to the ongoing success of your animal’s health. If you have any questions, call 605-246-2854 or email us and we'll promptly get back to you. Our Spencer veterinarian office is very easy to get to -- just check out the map below! We also welcome you to subscribe to our newsletter, which is created especially for South Dakota pet owners.

At Windhorse Veterinary Clinic, we treat your pets like the valued family members they are.

Dr. Teresa Roster
Spencer Veterinarian | Windhorse Veterinary Clinic | 605-246-2854

24868 SD HWY 25
Spencer, SD 57374

Meet Our Skilled Team

Learn Who We Are

  • Dr.
    Teresa Roster, DVM, CEVMM
    Medical Director
    Dr. Roster grew up in ND and knew from a young age that she wanted to be a veterinarian. Graduating from Kansas State Veterinary Teaching Hospital in 1993, was just the start of things to come. Dr. Roster worked in four other mixed animal practices through out SD before starting Windhorse Veterinary Clinic in 2002.
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  • Shanna Styles, RVT
    Veterinary Technician
    Shanna is our Veterinary Technician. She started with us in December of 2012. You might also get to visit with her on the phone. She fields many questions that our clients call in with. She attended NAU in Rapid City, SD and worked in two practices there before moving here to be closer to her family. She is married and has two young boys at home. No rest for her when she gets home at night!


Office Hours

Saturdays And Sundays Emergencies Only: Call The Clinic # 605-246-2854


8:30 AM-5:00 PM


8:30 AM-5:00 PM


8:30 AM-5:00 PM


8:30 AM-5:00 PM


8:30 AM-5:00 PM






  • "They are wonderful people and do excellent work and they care about your animals. I'm glad I have them as my vet. Thank u again with my pets."
    Elimae S.
  • "I cannot say enough on how much I appreciate the caring staff at Windhorse. My little dog, Libby, lost the use of her back legs. With the treatment she has received, she is walking again."
    Kathy Holm
  • "Great veterinarian, wonderful staff. Love the care they give to my 4 legged family members"
    Sue Arteberry

Featured Articles

  • Lost Pets

    Has your pet wriggled their way through the fence or dashed out the front door? When searching for your lost pet, make sure you include these steps in your hunt. ...

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  • Should You Leave Your Cat Alone for a Long Weekend?

    So you have a trip planned for the weekend, but what should you do with your cat? Learn how to best care for your cat while you're away. ...

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  • Flea and Tick Season

    Want to protect your pet from fleas and ticks? These tips can help. ...

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  • Summer Grooming Tips

    Want to keep your pet cool and comfortable this summer? A few changes to your normal grooming routine can help. ...

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  • What to Do If Your Pet is Stung

    Don't get us wrong, we love the bees! But we don't love when our pets get stung. Follow our tips to treat and prevent bee stings on your furry best friend. ...

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  • Tips for Traveling With Your Pet

    Do you dread hitting the road with your pet? These tips may make the trip more comfortable and enjoyable for you both. ...

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  • 6 Questions to Ask At Your Senior Pet's Next Check Up

    Want to keep your senior pet healthy and happy? Ask these six questions at your pet's next check up. ...

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  • Why the Controversy About Pet Vaccinations?

    As with anything, pet vaccinations can be too much of a good thing. Similar to parents who are learning more about vaccinations for children, veterinarians and pet owners alike are beginning to question some of the standard wisdom when it comes to protecting pets. There are certain fatal diseases against ...

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  • Pet Clothes: A Fashion Statement or a Necessity?

    There is nothing cuter than a pet in a colorful sweater, but do our furry friends really need to wear clothing? Although clothing is not a necessity for every pet, some animals benefit from a little extra protection during cold or damp days. Others enjoy wearing festive clothing during holidays or other ...

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  • Introducing a New Pet to Your Current Ones

    Pet Proofing Your Home Introducing your new pet to your current one is only a single part of the equation relating to taking a new pet home. You also have to make sure your new pet is comfortable in your home, which is a foreign environment to the animal. Like humans, animals can experience high levels ...

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