Meet Our Team

Meet the Veterinarians & Team of Mulford Animal Hospital in Rockford.
Our professional team headed by Dr. Katie Harbach, D.V.M., and Dr. Donna L. Mueller, D.V.M. guarantees satisfaction in every quality service that we render. Let us put our knowledge and experience to work for you and your pets.

Dr. Katie Harbach, D.V.M.

Dr. Katie Harbach Schulz grew up on a farm in Freeport, IL loving and working with an array of different animals. She graduated from the University of Illinois College of Veterinary Medicine in 2005. Since then she has worked in small animal practices full time and was the lead program veterinarian teaching certified veterinary technicians while working as a relief doctor. Dr. Harbach enjoys working with all animals but focuses on dogs, cats, and exotics. She joined us here at Mulford Animal Hospital in 2017 and, while she loved the teaching aspect of the field, her true passions lie in the relationships she builds with her clients and patients. She enjoys all aspects of small animal medicine but really focuses on internal medicine, ultrasound and ophthalmology. When not working she enjoys time with her family, husband, Jeremy, two boys, Zane and Dexter, and her dog, Rayna.

Dr. Donna L. Mueller, D.V.M.

Dr Donna Mueller has been providing care for pets at Mulford Animal Hospital since 2002. She received her Bachelor of Arts in Biology from Rockford College before attending the University of Illinois College of Veterinary Medicine. After earning her DVM in 1986 she practiced small animal medicine in a large practice in Chicago for 16 years before returning to her hometown of Winnebago. She has a daughter, Cora who is currently attending college. Dr. Mueller spends much of her free time keeping up her small farm and caring for her five dogs, four alpacas, and George, her llama. She is kept busy training her dogs in obedience, rally and agility and she and her dogs often participate in local dog shows. She also greatly enjoys walking her dogs and biking in local parks although she admits to being a true fair weather outdoor enthusiast only.


Practice Manager and Certified Veterinary Technician
Kristin has been working in the veterinary field for over 20 years. She received her veterinary technician degree from Parkland College and became certified in 2001 as a CVT. Since then she has worked in multiple aspects of the field including general practice, emergency care, and education as a vet tech instructor for 10 years at Rockford Career College. She is also the author of Essential Clinical Procedures for the Veterinary Technician, a step-by-step approach vet tech text book. Kristin enjoys spending time on the lake with her husband, 2 boys, family and friends and their dogs, Trigger and Lady.


Veterinary Assistant
Katrina has worked in the veterinary field for over 10 years. She’s always enjoyed caring for animals and working at Mulford Animal Hospital gives her the opportunity to be able to do something she really enjoys. When not at work, Katrina likes to visit with friends and ride horses.


Veterinary Assistant
Jennifer has worked at Mulford Animal Hospital for 11 years. She has two dogs, Bella and Phoebe, a rabbit, Fred Doo, and a cat, Toast. She has a true love for helping animals! In her free time she enjoys crafting.


Veterinary Technician
Taylor has been with Mulford Animal Hospital for 5 years and is currently enrolled in school at Penn Foster to become a Certified Veterinary Technician. She grew up in Pecatonica surrounded by all different types of animals. She has two dogs, Nike is a pit bull mix and Peyton is a chihuahua mix. In her spare time she loves to snuggle with her pups, stay active, watch sports and be around friends and family.


Veterinary Technician
Regan has always loved animals and knew that she wanted to go into the veterinary field from a very young age. Right after graduating highschool, she attended RCC veterinary technician program and graduated in 2018. Regan has 2 dogs at home, a great pyrenees mix and a border collie mix, and 3 cats. When Regan is not busy with animals, she enjoys reading and spending time with family and friends.


Certified Veterinary Technician
Jessica earned her associates in veterinary technology in 2015 from RCC and is a certified veterinary technician. She is passionate about providing quality care to her patients, educating clients, and loves the fast paced environment of being a technician. She enjoys spending her free time with her husband. two children, and their 2 dogs a cat.


Veterinary Technician
Jessica has been in the veterinary field since 2011. Currently, she is enrolled at Penn Foster to become a certified veterinary technician. Jessica has 2 cats and a horse as well as 2 snakes and 6 lizards. You could say she is our exotic loving tech! In her spare time, she enjoys showing her artistic side with drawing and painting.


Veterinary Technician
Liz has been a part of the Mulford Animal Hospital team since August 2019. She received her Bachelor’s Degree in Animal Sciences in 2008 and has been working with a variety of animals and aspects of the field ever since. In her spare time, Liz enjoys caring for a hobby farm with horses, sheep, goats, chickens, 3 cats and dog.


Lilly has been a member of Mulford Animal Hospital since 2015. She graduated from Rock Valley College with her Associate of Arts in 2020 and now attends Northern Illinois University. Although her education isn’t centered around animals, she has always had a love and passion for them for as long as she can remember. Lilly has two dogs at home, a pit mix named Roxy and a chihuahua named Roger. 


Veterinary Technician/Receptionist
Rachel has been working for Mulford Animal Hospital for over 12 years. She started working with us immediately after receiving her veterinary technician degree from Rockford Career College and has been a vital team member ever since. She has always had a huge passion for caring for animals and has loved getting to know each client and patient on an individual basis over the past years. In her spare time, Rachel enjoys spending time at home with her fiance and her morkie, Hazel.

Our Client Testimonials

Great Place and are always appreciative of the service I receive. My dog is a bit difficult when it comes to the vet, and they have been able to handle her and still make sure she gets the care needed! They do what they must for the benefit of the animals!

Dr. Muller has always been wonderful to our animals. Never seems in a rush and always has time to talk to you to understand what is going on with your pet.

The veterinarians take time to listen, understand concerns, and educate pet parents on their pet's health and wellness needs. The entire staff is very patient with animals who are stressed and react out of fear and uncertainty. They and their services are greatly appreciated by our entire family.

Terrific clinic! Everyone is friendly, respectful, and compassionate.

I can not tell you how much I love the doctors and staff at this clinic. They were so kind to us. Even calling to see how I was after our cat passed. The doctor has us as forever clients.

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