Welcome to Mad River Veterinary Service
Compassionate care in the Mad River Valley near Sugarbush and Mad River Glen

Call us at 802-496-7272
Welcoming new patients and walk-ins as time permits

mad-vet-kennel-mt-ellen-1.jpgIf you live in or visit Central Vermont and need a trusted veterinarian to care for your pets – look no further. Mad River Veterinarian Dr. Karen Anderson is licensed in NY and VT to provide care for a variety of pets and animals. Your pets’ health and well-being are very important to our whole team, and we take every possible measure to give your animals the care they deserve while understanding the complexity of an animal’s treatment as it impacts the physical, emotional, and financial aspects of the providers.

Mad River Veterinary Service is a full service animal care center and welcomes a variety of cases as well as animal patients in need of routine medical, surgical, and dental care. Veterinarian Dr. Karen Anderson has over 30 years of experience diagnosing, treating, and following up on serious conditions as well as offering regular pet wellness care. Beyond first rate pet care, we make our clinic comfortable and calm and the surrounding gardens and large fenced field provide a safe, relaxing place to walk with or without an animal pre or post exam.

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 (802) 496-7272 and we’ll get back to you as soon as possible. Our office is easily located on Route 17 in Fayston not far from the intersection of Rts 100 and 17 in Waitsfield – and you can find directions on our Contact Us page! We also welcome you to subscribe to our newsletter, which is created especially for the animals that live in and visit the Mad River Valley.

Mad River Veterinary Service … your “other family doctor”.


Mad River Veterinarian, Dr. Karen Anderson
Serving the towns of the Mad River Valley and beyond
(Waitsfield, Warren, Fayston Moretown, Duxbury, Granville, Roxbury, Starksboro)
637 Mill Brook Road (Rt 17)
Fayston, Vermont 05673

Meet Our Skilled Team

Learn Who We Are

  • Larissa Gemberling
    Kennel Manager

    Larissa attended Northern Vermont University leaving with a visual communications degree in December of 2017. Since a young age Larissa has had a passion for animals and has always wanted to work with them in any way she could. Doctor Anderson was willing to take on an eager, excited young lady who was ready to learn. When Larissa is not in the kennel, working on MRVS media, or in the office. You can find her spending time with her boyfriend and two dogs, Paquito the chihuahua and Viper the samoyed. As well as snowboarding, mountain biking or just about anything in the outdoors.

  • Karen Anderson
    With over 30 years of experience in compassionate care for the creatures in our lives who we call a part of our family, Dr. K is an integral part of the fabric of the Mad River Valley and the families that reside here. In addition, those who call this special place a “home away from home” also utilize her services since her down to earth approach of both caring and educating is a unique blend that benefits both the animal and the owner.
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  • Julie Longstreth
    Team Member

    Julie is attempting to see how much veterinary assisting she can get away with while simultaneously raising three children, a husband and 2 rescue newfs; a newf and a semi-newf in the Richmond, VT area.  She has degrees from Middlebury College (BA), and Northern Arizona University (MA) and the Animal Behavior College.  She has been moving salamanders to safety along the dirt roads of New England since she was knee high to a grasshopper, advocating for animals since the beginning. She has worked for the Vermont Amphibian and Reptile Atlas Project, the Navajo Nation Environmental Consulting Project, and the Utah State Anthropologist. Currently she has her own in home studio arts business, No Straight Lines, writes and illustrates articles for the Green Mountain Animal Defenders, and walks dogs for the Chittenden County Humane Society. She skis to live and is happy to have a learning opportunity in the Mad River with Mad River Veterinary Service!

  • Sue Heim
    Kennel Care Provider & Office Care/Clean Team member
    Originally from Maine, Sue is quite the nurturing dog lover. She really enjoys interacting with all canines but is especially fond of shepherds and labs. When Sue isn't caring for our boarding clients she can be found pursuing her passions of sailing, gardening, skiing, and spending time with her grandchildren.
  • N'Einstein Anderson
    Welcome Waggin'

    I'm a ball of energy most of the time... but I can often be found curled up like a cat sleeping while other canines and felines visit my human. Check him out on his twitter page @Neinmeansno


Office Hours



8:00 AM-6:00 PM


8:00 AM-5:00 PM


8:00 AM-5:00 PM


8:00 AM-5:00 PM


8:00 AM-5:00 PM


9:00 AM-12:00 PM



Featured Articles

  • The Next Step

    The grieving process includes accepting the reality of your loss, accepting that the loss and accompanying feelings are painful, and adjusting to your new life that no longer includes your pet. How do I tell my family? Family members usually are already aware of a pet's problems. However, you should ...

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  • Online Games & Quizzes

    In this version of badminton, your tail is the racquet. Make the dolphin do flips and tricks. Play Zipper's Kennel Chaos game! Can you help get water in Zipper's dish? Use your frog tongue to catch delicious bugs. Create your very own prize-winning pooch! Speed down the ice while ...

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  • Battling Canine Cancer

    Every day, Cindy Fleischner lines up her crew of cuddly canines for breakfast. As the four other dogs eat, Cindy pulls Katy, her 12 year old Shepherd mix aside for a peanut butter treat. Katy is battling lymphoma and this treat hides her daily dose of chemotherapy drugs. Katy is not alone in this war. ...

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  • Gastroenteritis in Pets

    Lengthy bouts of vomiting and diarrhea can be a sign that your pet has gastroenteritis, a common condition that occurs when the lining of the stomach and intestines becomes irritated. Since frequent diarrhea and vomiting can lead to dehydration, a visit to the veterinarian is a good idea if you notice ...

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  • What You Need to Know About Antibiotics

    Using antibiotics incorrectly may harm, rather than help, your pet. ...

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  • Training Tips for Your Pets

    Has training your pet been a frustrating experience? These training tips may help. ...

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  • World Rabies Day

    Has your pet's rabies vaccine expired? Update it during World Rabies Day on September 28. ...

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  • Why A Vet Is Your Best Defense During A Zombie Apocalypse

    Could your veterinarian help you survive a zombie apocalypse? ...

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  • 8 Common Reasons Why Your Dog is Snoring

    Do you know why your dog snores? ...

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  • Becoming a Service Dog: Training and Temperament Are Key Factors

    Service dogs help thousands of disabled Americans become more independent. The first service dogs guided visually impaired people, but today, the dogs assist people who have a variety of disabilities, ranging from hearing loss to seizures to cerebral palsy. Before a dog can become a service animal, it ...

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