Winter hours:
M-F 7am-7pm    

Saturday 9am-5pm 
5520 Yellowstone Rd.     
Cheyenne, WY     

Welcome To Avenues Pet Clinic!

Avenues Pet Clinic is dedicated to serving the pets in Cheyenne, Wyoming and the surrounding areas. With our full-service animal hospital and in-house pharmacy, lab, and imaging equipment, our veterinarians are able to provide your furry and feathered friends with the highest quality routine care and 24-hour emergency services.

Emergency Care

In addition to our extended office hours, Avenues Pet Clinic offers 24/7 emergency care for new and established patients. Just call our regular office line, 307-778-3007, to be connected with the on-call veterinarian to arrange to be seen!

Amazing Doctors

Our doctors are committed to providing the highest level of care for our patients!  Their bedside manner and attention to detail helps to put even the most nervous patients (and their humans) at ease.

Surgical Center

Avenues Pet Clinic offers a complete surgical center, and highly-trained vets that allow us to perform most surgical procedures right here in the office--no need to travel to make sure your pet receives the care it needs!

Meet our Doctors 

Avenues Pet Clinic is staffed with highly-qualified veterinarians, committed to caring for your pets as if they were their own!

Dr. Rod Hartshorn


Dr. Rod Hartshorn graduated the University of California at Davis, and has been with Avenues Pet Clinic since Dr. Jean Cotton first opened the doors in 1983. Dr. Hartshorn has been practicing small animal medicine and surgery for 45 years, and served 21 years in the Air Force Veterinary Corps. 

Dr. Hartshorn is board certified by both The American College of Laboratory Medicine (ACLAM) and the American College of Veterinary Preventative Medicine (ACVPM) and is also a member of the Veterinary Emergency and Critical Care Society.

In addition to his love of the practice, Dr. Hartshorn is an avid downhill skier and SCUBA diver. He and his wife Laura raise and competitively show Miniature Schnauzers, 30 of which have earned their AKC championship.

Dr. April Zander


Dr. April Zander was born and raised in Cheyenne and is a graduate of East High School.  She received her B.S. in Zoology from Michigan State University and then moved to Fort Collins to complete her DVM degree from Colorado State University.  Dr. Zander worked at a mixed animal practice in Laramie for 4.5 years before relocating to Cheyenne.

In her spare time, Dr. Zander enjoys traveling, playing the piano, running, and spending time with family.  She has a cat named Gus and an American Eskimo dog named Sadie.

Dr. Randy Smith


Dr. Smith received his undergraduate degree from Colorado State University, getting his Bachelor of Science in Animal Science. He then continued at Colorado State University, receiving his DVM degree in2004. Afterward, he completed a one year internship at Wheat Ridge Animal Hospital, and spent one year in a surgical residency at Texas A&M University.

Dr. Smith loves performing surgeries of any type, whether orthopedic, oral or soft tissue.
Outside of work, Dr. Smith enjoys golfing, skiing, fishing, biking and hiking with his family, and watches his kids perform in sporting events and dance recitals at every possible opportunity.

What we Offer

We at Avenues Pet Clinic strive to provide comprehensive pet care. Our most-used services are: 

Full Service Animal Hospital

Serious illnesses or injuries may require hospitalizations. 

Whether your pet has a serious illness or injury, or is simply recovering from a routine procedure, we have the technology to provide the care and monitoring they need!

  • On-call vet 

  • Canine blood bank

  • Continuous monitoring


Fully-stocked, in-house pharmacy.

When your pet is ill, you don't want to have to wait for their medication!  On the very rare occasion we don't have a prescription on hand, we will rush special order it for you!

  • Chronic conditions

  • Post-op pain management

  • Specialty food for weight management


In-house lab and radiology testing.

No need to bring your pet out of town for lab and imaging--Avenues Pet Clinic is proud to perform and process diagnostics right here in Cheyenne, so you don't have to wait for results!

  • X-rays

  • Digital imaging

  • State-of-the-art lab

Health, Wellness, & Injury Exams

Keep your pet healthy all year!

Whether your pet needs annual vaccinations, isn't feeling well, or has been injured, our thorough exams are designed to find any problems there may be.

  • Clean, cheerful exam room.

  • Extended office hours

  • Serving cats, dogs, birds, amphibians, reptiles, and rodents


Dental care is vital to your pet's health!

The ASPCA recommends brushing your pet's teeth daily! Even with brushing, plaque buildup can lead to inflamed gums, decayed teeth, and even bacterial infections.

  • Ultrasonic scaling

  • Polishing, sealants, fluoride treatments

  • Extractions

24/7 Emergency Service

After-hours care for new & established patients.

Whether your pet has suddenly fallen ill, or has been injured, our vets are on call 24 hours/day, every day of the year. Please do not attempt to schedule emergencies online; call 307-778-3007.

  • 24 hour service

  • In-house diagnostic capability

  • Complete animal hospital and pharmacy

Our Gallery

We are proud of our awesome clinic!  Feel free to call to arrange a tour of the facility!

Reviews and Ratings

Yelp Reviews Avenues Pet Clinic Cheyenne