Meet Our Team

Dr. Peter Janssen, M.S., D.V.M.

Dr. Janssen was born and raised right here in Wisconsin. He attended UW-Madison, earning a Bachelor’s Degree in Zoology, a Masters Degree in Environmental Toxicology and, of course, a Doctorate in Veterinary Medicine. He has been practicing veterinary medicine since 1988 and opened the Janssen Clinic for Animals in 1990. In October ‘06, he was named Veterinarian of the Year at the WVTA annual convention, an honor that he is humbled by.

Many pets have been part of his life including dogs, cats, rabbits, hamsters, turtles, an alligator, a hermit crab and most recently a hedgehog. He enjoys spending time with his wife, Audrey (our office manager) and three children, Dana, Ava, and Peter. Dr. Janssen is thankful for all the wonderful clients and patients that he has had the privilege to know, and looks forward to each day at JCA!


Anna, Certified Veterinary Technician

Anna graduated from MATC as a Certified Veterinary Technician in 2008. She has always lived in Wisconsin. Anna started with Janssen Clinic for Animals in November of 2019 and she loves working with all the pets and clients here at the clinic. Anna enjoys the interactions with the pets and their human family.

Outside of Janssen Clinic for Animals, Anna lives with her husband and two children in Roxbury. They share a home with two German Shepherds, a lab mix, and an assortment of cats. Anna likes to relax with puzzles or a good book as well as spend time gardening.



Luci, Veterinary Assistant

Luci joined the Janssen Clinic Team in September 2018 and has since enjoyed getting to know all of the clients and expanding her technical skills and knowledge in the field for her future career.  She is currently attending the UW-Madison School of Veterinary Medicine to earn her DVM and is expected to graduate in the spring of 2022.  Before coming to Madison, Luci graduated with her Bachelor's degree in Neuroscience with honors from Carthage College in Kenosha, WI.

In her little bit of free time, Luci enjoys running, playing volleyball and spending time with her family, friends and cat, pictured at left, Camille.


Deborah, Veterinary Assistant

Deborah graduated from the UW-Madison in the spring of 2020 with a degree in Animal Sciences and French. She joined Janssen Clinic for Animals in May of 2020. She likes being able to interact with all the clients and their pets as well as see the different surgeries that Dr. Janssen performs.

When she isn’t working, Deborah likes to explore coffee shops, to travel, and go shopping. Deborah doesn’t have any pets yet but one of her goals is to own a Samoyed dog in the future.


Ellie R

Ellie R., Veterinary Assistant

Since joining the Janssen Clinic team in September 2020, Ellie has enjoyed working with the pets and clients at  while expanding her knowledge of veterinary medicine for her future career!  She is currently attending the UW-Madison School of Veterinary Medicine to earn her Doctorate's degree and is expected to graduate in the spring of 2023.

Before coming to Madison, Ellie graduated from UW- River Falls in the spring of 2020 with a degree in Animal Science. Besides working at the clinic and studying for school, Ellie likes to explore the city with her roommates, watch movies, bike riding and reading.  Ellies lives on a farm back in her hometown where her two cats, Ernie and Morris, love to keep her company when she is home.

Ellie Kohlenberg

Ellie K., Certified Veterinary Technician

Ellie is a MATC graduate and came to Janssen Clinic in 2008 with a wide variety of veterinary experience including equine medicine and emergency service. Since joining our team, Ellie and her husband have become the parents of 3 busy and energetic children who enjoy school, Girl Scouts and hockey.  Completing their household in Mount Horeb are their 2 cats, Gato and Grady.


Audrey, Office Manager

Behind the scenes most of the time, Audrey keeps the food ordered, the schedule up to date and the forms revised. With a talent for organization, Audrey brings a wealth of experience and energy to the clinic. She is a UW alumnus and also holds a Masters Degree in management from Cardinal Stritch College.

Audrey has had many pets in her life including lambs, dogs, cats and a horse. At home, she likes to keep busy with 4-H as the Cat Leader, Scouts, and many other activities with her three children.



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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