Welcome to Janssen Clinic for Animals LLC

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


MY DOG LOVES VEGGIE - DENTS!  And I feel good about giving him a treat every day that has been shown to help decrease plaque and tartar formation and bears the VOHC (Veterinary Oral health Council) seal. ONLY products with the VOHC seal have been PROVEN to help with oral health. If you use other chews try Veggie Dents! Go to MyVetStoreOnline.com and use the promo code: JCAVeggieDent10 to get a 10% discount!

 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 and cats. 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 over 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-5:00 pm


7:30 am-5:00 pm


7:30 am-5:00 pm


9:00 am-12:00 pm





Read What Our Clients Say

  • "Dr. Janssen is a consummate veterinarian who does a terrific job with my dog. He is gentle and thorough and really knows his stuff. He has a great staff of assistants that are friendly to clients and their pets. 10/10 would recommend."
    Travis Drow
  • "We were met with a friendly welcome the minute we arrived and the staff handled my dog with great care. She became at ease with them very quickly. I would recommend Janssen Clinic without reservation and will continue to have them treat my dog for all her veterinary needs."
    Paula Behling
  • "Janssen Animal Clinic has always been wonderful to Bagel, my almost 18 yr old Border Terrier. Dr. Janssen and his staff are courteous, professional, and treat Bagel with lots of TLC. Dr. Janssen is very thorough with his exams and always ready to listen to my questions and answer them in a manner that I can understand."
    Linda Barrett
  • "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