Welcome to Janssen Clinic for Animals LLC

Your Veterinarian in MIDDLETON, WI
Call us at (608) 836-0600


Pet Emergency? Call us right away at (608) 836-0600!


Your neighborhood vet since 1990, Providing gentle and personalized service. One of only 6 clinics in Madison area accredited by the American Animal Hospital Association. A full service veterinary facility, emphasizing preventative health care for dogs, cats, rabbits and other small pets. While we offer the most innovative services and therapies, we know the importance of personal care for your pet. Our competent and caring staff works as a team to create an atmosphere focused on exceeding expectations.

Janssen Clinic for Animals LLC is a full service pet clinic and welcomes both emergency treatment cases during our office hours as well as pet patients in need of routine medical, surgical, and dental care. Dr. Peter Janssen has 28 years of experience treating serious conditions and offering regular pet wellness care.

As one of only 6 American Animal Hospital Association Accredited hospitals in the Madison area,  Janssen Clinic for Animals LLC voluntarily meets over 900 standards that ensure the best care for your pet.  Our Staff is friendly and caring and go 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 MIDDLETON veterinarian, Dr. Janssen.

We are happy to offer a number of online 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 pets requires ongoing nutrition and problem prevention, so becoming knowledgeable about preventative pet care is essential to the ongoing success of your pet's health. If you have any questions, call (608) 836-0600 or email us and we'll promptly get back to you. Our MIDDLETON veterinarian office is very easy to get to -- and you can find directions on our Contact Us page! We also welcome you to subscribe to our newsletter, which is created especially for MIDDLETON pet owners.

At Janssen Clinic for Animals LLC, we treat your pets like the valued family members they are.

Dr. Peter Janssen
MIDDLETON Veterinarian | Janssen Clinic for Animals LLC | (608) 836-0600

MIDDLETON, WI 53562-3635


American Animal Hospital Association Accredited Practice

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Office Hours

Our Regular Schedule


7:30 am-5:00 pm


7:30 am-5:00 pm


7:30 am-5:30 pm


7:30 am-5:00 pm


7:30 am-5:00 pm


9:00 am-12:00 pm





Read What Our Clients Say

  • "We have a 5 star rating from 99.1% of our clients!

    We've been bringing our pets to Janssen Clinic since 1998. Dr. Janssen and his team are the best. I never struggle trying to get in for an appointment & they are so kind and good with my pets. Dr. Janssen is very calm & caring. My dog is high strung & extremely attached to me. She calms down quickly in their office, however, because of their ability to soothe her. We wouldn't go anywhere else."
    - Sharon and Kendall D / Middleton, WI