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  • Annual Pet Examinations With Your Casper Veterinarian
    Annual Pet Examinations With Your Casper Veterinarian At Westside Animal Hospital, we care for all animals as if they were our own. We know that you want your animal to live Read more
  • Spay & Neuter FAQ
    Spay & Neuter with Your Casper Veterinarians: FAQ Spaying and neutering is the most common pet surgery in Casper, along with the rest of the country. You've probably got questions before bringing Read more
  • Summer Pet Boarding
    Summer Pet Boarding in Casper When you go on vacation this summer, it may be tempting to implore the help of a neighbor to feed and water your pets or hire Read more
  • How to Brush Your Dog's Teeth
    How to Brush Your Dog's Teeth Canine dental disease is no joke: it can increase a dog's risk for other illnesses and may even decrease his lifespan! Moreover, treating dental disease is much more stressful, Read more
  • Welcome to Westside Animal Hospital!
    Welcome to Westside Animal Hospital! Westside Animal Hospital in Casper, Wyoming welcomes you to try its facilities! We're proud of our role in the community of Casper, where we provide quality Read more


Office Hours


7:30 am-5:30 pm


7:30 am-5:30 pm


7:30 am-5:30 pm


7:30 am-5:30 pm


7:30 am-5:30 pm




5:00 pm-5:30 pm


Read What Our Clients Say

  • "The entire team at Westside Animal Hospital is fantastic!! They take such great care of both of our dogs - young & old - routine care and/or emergencies!! Thank you to the Drs. Johannessen for all you do for our family:) Our community is truly so fortunate to have you here!"
    -Melissa Y
  • "Very good facility. Both doc's are good about giving quality time and their assistant Ashley is wonderful."
    -Victor J