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South Hardin Veterinary Clinic

Our mission, at South Hardin Veterinary Clinic, is to provide exceptional veterinary care with every visit in a friendly and relaxed environment with focus on internal and preventative medicine, accurate diagnostics, and compassionate care for your pets and livestock. We strive to exceed our client’s expectations by treating all animals as if they were our own.





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Providing veterinary care to Union and surrounding areas!



  • Wellness and Preventative Medicine
  • Vaccinations and Microchipping
  • Routine Surgical Procedures
  • Dentistry
  • Ultrasonography
  • Digital Radiographs
  • Internal Medicine
  • Humane Euthanasia and Cremation Services
  • Emergency Services


  • Herd Health and Reproductive Services

  • Vaccinations and Deworming Protocols

  • Internal Medicine

  • Equine Dentistry

  • Interstate Health Certificates and Coggins

  • Emergency Services
Our Team
Dr. Casey Balvanz

Dr. Casey Balvanz

DVM, Owner

Dr. Casey graduated from lowa State University in 2009 with a Bachelors in Animal Science and then graduated from lowa State College of Veterinary Medicine in 2013. Read more...

Her favorite part of veterinary medicine is getting to know her clients and their pets and making them a part of her family. She also enjoys  preventative mixed animal medicine as well as educating her clients on how best to care for their pets, horses and livestock. In her spare time, she spends time with her family and friends as well as helping with the family cattle operation. She also enjoys fishing with her husband, quilting, riding horses and running.

Dr. Casey shares her life with many pets, including  Molly, the clinic cat. You may see her as a door greeter from time to time at the office. Then there is Tonto, a handsome tuxedo who was a bottle kitten from the barn and will also visit the clinic from time to time. Also, there is Woodrow, her corgi, and Keaton, her calico that went through veterinary school with her as well, Uno, her one eyed house cat, Chewy, a beautiful fluffy Siamese rescue and Zesta her crazy white lab.

Dr. Casey also has 10 horses, 25 commercial breeding ewes, and several chickens, geese, and ducks. She also helps with the family cow/calf operation.

Carol Balvanz

Carol Balvanz

Part time Receptionist and Accounts Payable Clerk

Carol graduated from Iowa State University with a degree in English and Speech communications in 1973. Read More...

She taught and coached for 14 years, and then was hired as communications director for the Iowa Cattlemen’s Association in 1987. In 2005 she became the Public Policy Director for the Iowa Soybean Association. She retired from employment in 2018 and now helps out at South Hardin Veterinary Clinic.

Her favorite part of veterinary medicine is being able to help her family members. She and her husband have always raised cattle, horses and various pets, so she been involved in animal health and production. This job has given her the opportunity to learn more about the technical side of animal care and treatment.

In her spare time, Carol enjoys spending time with her grandsons on the farm, and attending their sporting events. She loves tending her flower beds and yard in the summer, and working with the livestock year round, as well as sewing, knitting and quilting.

She has three house cats: Ernie, Skippy and Lolo. Ernie is the rescue cat with an attitude. Skippy is a pretty blue-eyed Himalayan, and Lolo is a long-haired dark tiger. Tonto, a tuxedo kitten Casey bottle fed two springs ago also lives with them and torments the resident cats. They have two border collies, Hank and Dale, who help with the livestock, and they frequently take care of Casey’s dogs, Woody (corgi) and Zesta (white lab.) Their menagerie also includes 80 crossbred cows, 3-4 horses and many outside cats. 

Lacey Hornung

Lacey Hornung

Veterinary Technician

Lacey graduated in 2016 from Tarleton State University in Stephenville, Texas with my Bachelor of Science in Animal Science with an emphasis in Animal Production. Read More...

Her favorite part of veterinary medicine, is making a difference in the lives of pets and their owners. She loves seeing the love and happiness on all of their faces!

In her spare time, Lacey enjoys spending time with her husband, showing calves, and snuggling with her four cats – Meeko, Bagheera, Uno, and Lila. As a happy, “crazy cat lady”, she loves cat personalities.

Meeko is a black and white longhair with one blue eye and one green eye. He was her first fur baby and was with her throughout college. He was the gateway cat to becoming a crazy cat lady thanks to Dr. Balvanz. Bagheera is a solid black shorthair that was a bottle baby…job hazard of being a technician; you always bring home the bottle babies. Uno is a solid gray shorthair with you guessed it…only 1 eye. He was ultimately a foster fail because Lacey fell in love with his wonderfully weird personality.  Lila is a gray and white shorthair and was her last rescue baby. She was a foster fail as well because Uno just loved her so much. The two of them are always together so there was no way she could separate them. She is her most obnoxious child and will always let you know when she is hungry, which is pretty much 24/7. 


Sandy Nelson

Sandy Nelson

Part Time Receptionist

Sandy has been working at South Hardin since 1988. She grew up on a farm near Stratford, lowa. Read More...

She graduated from Stratford Community School and attended lowa Central Community College until she married her husband and started a family. Her favorite part of veterinary medicine is working with animals and the people who love them. 

In her spare time she enjoys spending time with her grandchildren and doing crafts. Her pets Bitsy, a 9 year old faux Siamese cat, and Kato, an 8 year old Shetland Sheepdog.


Why Choose Us?

Our veterinary team has been caring for the pets of Union for many years. We understand how much your pets mean to you, and treat them as if they were our very own.

South Hardin Veterinary Clinic has been supporting Hardin County 4-H and helping to share the vision of hard work and responsibility to the animals in our lives.

Animal Pain

3 Signs Your Pet May Be in Pain

It crosses every pet owner’s mind: “Is my pet in pain?” And this question comes up more and more as our pets get older. One of the most difficult things about being a pet owner is that our pets cannot verbalize how they’re feeling. This leads us to wonder if our dogs and cats are living their best lives. The last thing you want is your pet struggling with chronic or acute pain, after all. And while your pet will likely never learn to speak human, they often send more subtle signs that they’re in pain. Here are 3 of the most common signs that your pet is in pain:

1. Changes in Behavior

It can be difficult to tell what is normal slowing down due to age for a dog or cat versus what is a change in behavior, activity level, or temperament due to pain.

What’s normal?

Partaking in games, affection, and fun but with less intensity. Many dogs and cats will also become more tired than they did when they were young. Sleeping more often between stints of activity is also normal.

What’s not normal aging?

If your pet’s attitude or interest in their favorite activities abruptly changes, there’s a very strong possibility they’re in pain. Discomfort and pain can make pets feel cranky and grouchy. It also zaps the fun out of playtime, snuggling, and receiving attention.

Many pets will tend to become more irritable over the course of the day. This is due to compounding aches and pains. There’s also a very good chance that if your pet is experiencing pain, they’re not sleeping well which adds to their crankiness.

Some pets may even growl or nip in response to pain. If you stroke your pet and they pull away or turn to nip you, you may have run your hand over a sore area.

If your pet loves snuggling on the sofa, but suddenly refuses to hop up, they’re likely not feeling their best.

2. Obsessively Licking One Area of the Body

Both dogs and cats will obsessively groom an area that is bugging them. The most obvious reason they do this is that they’re surveying and cleaning the area. Secondly, the tongue massages the tissues and increases blood flow to the area for a better immune response.

Not only does licking stimulate more blood flow to an area of discomfort, but it also releases ‘feel good’ endorphins in your pet’s brain.

You may notice your pet licking their paws and joints. This may be due to arthritis pain or over-exertion and soreness. Many dogs and cats will also paw at itchy painful eyes or ears.

3. Difficulty Eating or Lack of Appetite

If your pet loses interest in their meals, they are very likely not feeling well. Injuries can immediately cause a dog or cat to not want to eat. This is part of their fight or flight mentality as a response to pain.

Disinterest in food can be a sign of internal illness, as well. Many hidden conditions can cause a pet to feel lousy, which makes them lose interest in food. The most common internal conditions include:

  • Parasites
  • A strain or broken bone
  • Allergies
  • Tumors
  • Infection
  • Organ problems
  • Possible poisoning
  • An autoimmune disorder

Oral pain will also cause a reluctance to eat. If your pet skips a few meals or begins eating but stops, check their mouth for broken or chipped teeth. It can be difficult to tell what you’re looking at when it comes to your pet’s mouth, so be sure to make an appointment to see us.

Don’t Let Your Pet Continue to Deal with Pain

If you believe your pet may be in pain, please do not wait to schedule an appointment. Many of the signs we’ve listed could be symptoms of a worsening, severe, or life-threatening issue. We can diagnose your pet and provide the most advanced pain management and treatment.

Proactive preventative care, including dental cleanings, parasite prevention, exercise, regular checkups, and a healthy diet are the building blocks to your pet’s good health. We’re here to help you on this journey.


Keep your pets and herd Healthy
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Our Hours:

Sunday: Closed

Monday: 8am-5pm

Tuesday: 8am-5pm

Wednesday: 8am-5pm

Thursday: 8am-5pm

Friday: 8am-5pm

Saturday: 8am-12pm


Book an appointment by calling:

(641) 486-5485