Meet Our Team

Meet Our Veterinarians

  • Dan Bergerud
    DVM
    Dr. Dan joined Cass Veterinary Services in January 1997. His rural Iowa upbringing in Burt, Iowa and later in Iowa City, had a big influence on his chosen field. After high school, Dr. Dan completed his veterinary studies at Iowa State University. His original interest in veterinary medicine came about while working with dairy cows on the family farm. There are currently only a few dairy cows in the area and his favorite is a Jersey cow named Peaches.

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  • Josh Castaneda
    DVM
    After his graduation from the University of Illinois College of Veterinary Medicine in 2014, Dr. Josh joined Cass Veterinary Services. He is a member of American Veterinary Medicine Association, Illinois Veterinary Medicine Association, as well as an Alumni member of Omega Tau Sigma (OTS) veterinary fraternity. Dr. Castaneda still hosts students from OTS to help during rescue days, and help them practice their surgical skills. Having lived in Mexico for 18 years, Dr. Castaneda is ready to help our clients in either English or Spanish.

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  • R.L. Zeller
    DVM
    Dr. Zeller grew up on a farm near Alexander and always found the various animals fascinating, so becoming a veterinarian was a natural progression for him. He graduated from the University of Illinois School of Veterinary Medicine in 1974 and began working for Drs. McKinney and Roegge in what was then a mixed animal practice.

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Veterinary Technician

  • Anna
    Hospital & Clinic Manager – Virginia Clinic
    Born and raised in rural Illinois, Anna knew at a young age she wanted to work in the animal care field. She joined Cass Veterinary Services in 2004, but has worked in the profession since 1988 with experience in general, emergency and specialty medicine. Her favorite areas of treatment include radiology, lab work, and petting the patients.

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  • Kris
    Inventory & Purchasing Coordinator | Media & Marketing Coordinator

    Kris joined our team in May 2017 as a receptionist in our Virginia Clinic. Her more than 30 years of business administration experience, including bookkeeping, payroll, human resources and marketing, made her a natural to move into her current role as inventory/purchasing and media/marketing coordinator.

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  • Terrie
    Veterinary Technician – Jacksonville clinic
    A self-described lifelong animal lover, Terrie has worked with veterinarians for many years. Cass Veterinary Services gained Terrie’s vast experience when they acquired Dr. Zeller’s practice in May 2017. Terrie worked with Dr. Zeller for more than 37 years, combining her pleasure of working around animals with the necessity of feeding her own.

    Terrie is a lover of all animals, but has a special interest in Morgan horses, Australian Cattle Dogs, geese, ducks, and chickens.


  • Keri
    Receptionist – Virginia Clinic
    Keri was born and raised In Virginia, Illinois. With almost 20 years in customer service, she has been a great addition to the Cass Veterinary Services team since she joined in August of 2017.

    A lifelong lover of all animals, Keri’s compassion for our patients and family member clients is a great addition to our staff. When not at the clinic, Keri can often be found spending time with furbaby loves, dogs Zoey and Molly, and cat Benny.


  • Madison
    Certified Veterinary Technician - Virginia Clinic
    Madison is a Beardstown High School graduate and recently received her associates degree in Veterinary Technology at The Vet Tech Institute at Hickey College.

    Madison started as a Kennel Assistant with Cass Veterinary Services in 2014 and has assisted in the clinic during college. Her favorite areas of treatment are dental services, surgery and appointment assists.

    Her fur family includes Inari, a Shiba Inu, Beans, a Corgi, and a cat named Thomas.


  • Lisa C.
    Kennel Assistant - Virginia Clinic
    Lisa has worked with our clinic for ten years. She started as a weekend Kennel Assistant in our Ashland clinic. In 2010, she moved to our Virginia clinic as a Kennel Assistant.

  • Ashley
    Certified Veterinary Technician - Jacksonville Clinic

    Born in Broken Arrow, OK, Ashley has spent the past 20 years ''bouncing all around colorful Colorado.'' She brings ten years of vet tech experience to our clinic, having worked in small and large animal clinics in Colorado.

    Ashley and her husband have a son and a daughter, and two dogs, Gruber, an American Bulldog, and Winnifred, a Brussels Griffon Corgi mix. In her free time, Ashley is an avid knitter and confesses she can often be found KIP (Knitting In Public).

    Patient care is Ashley's favorite part of her work. ''I enjoy being a surrogate owner and providing love and care.''


  • Faith
    Kennel and Tech Assistant - Jacksonville Clinic

    A Virginia native, Faith still lives in Cass County. She originally joined our staff as a Kennel Assistant in our Virginia Clinic, and returned to our Jacksonville clinic after completing her CNA and working in skilled living.

    Faith enjoys assisting with surgeries and learning more about medications. She wants to, 'Learn everything I can!' She is currently studying at Lincoln Land Community College.

    Faith's fur family consists of: Koda, a black Lab/German Shorthaired Pointer mix; Suki, a rescued Blue Tick; and Poppy, a Puggle. 


  • Sarah
    Veterinary Technician - Jacksonville Clinic

    Sarah spent six years as a veterinary assistant in an area clinic before joining our team. She is an area native and currently lives in Jacksonville with her husband, Brandon, and daughters, Hannah and Claire.

    Sarah's love of animal is obvious at work and at home. Her family includes pets Diesel, Matilda, and Charlotte. 

  • Ariel
    Veterinary Technician - Jacksonville Clinic

    Jacksonville native, Ariel, and her four legged babies, Ellie, a Rottweiler, Remy, a German Shepherd, and domestic shorthair kitty, Garfield are a busy family. Along with fiance, Luke, they enjoy spending time with family. 

    Ariel has been with Cass since 2021, and loves being able to play and interact with our patients. She keeps busy working at the clinics and attending Lincoln Land Community College. She then plans to pursue a veterinary technician degree. 

    Her hobbies include reading and diamond painting.


  • Tammy
    Receptionist - Jacksonville Clinic

    Tammy is a lifelong area native, living in the Meredosia and Arenzille areas. With more than 23 years in office adminatration work, including 15 years with Dot Foods, makes her a great fit for our team. 

    Helping our clients and their pets are Tammy's favorite part of her position in our clinics since she joined us in August of 2022.

    Family is a big part of Tammy's life. She and her husband, Gary, enjoy time with their three sons, one stepdaughter, two grand children, and their Dachshund, Ollie.






  • Taylor
    Veterinary Technician - Virginia Clinic

    Taking care of others is a big part of who Taylor is. Prior to joining our team in 2022, she worked at an area nursing care facility as a CNA.

    The born and raised Philladephia, IL resident, loves working with all our patients, and especially likes assisting in surgery. 

    Taylor's family includes Corgie/Mini Aussie mix, Wrigley, and yellow Lab, Ella. 

  • KaLynn
    Receptionist - Virginia Clinic

    KaLynn joined our staff in 2022 after working with the Cass County Health Department, and is a Illinois College graduate. Although much different than human care, she enjoys working with all of the 'cute animals' in our clinic.

    The Beardstown native enjoys traveling with her husband, Kyle. Their favorite vacation destination is Las Vegas. She also enjoys working out and playing volleyball.

    KaLynn's home is shared with Corgis, Hampton and Wyndham, and three cats, Sheraton, Hyatt, and Ritz Carlon. We sense a theme here.

*Walk-In hours at our Virginia location*

Monday - Friday: 1:00 pm to 2:00 pm, Saturday: 10:00 am to 11:00 am and 1:00 pm to 2:00 pm

Virginia Lobby hours - 217-452-7171

Monday - Friday: 8:00 am to 5:00 pm, Saturday: 8:00 am to 2:00 pm Scheduled appointments only outside of Walk-In hours.

Jacksonville Lobby hours - 217-243-3381

Monday - Friday 8:00 am to 5:00 pm, Saturday 8:00 am to 12:00 pm Scheduled appointments only, no walk-in clinic.

Office Hours by clinic

Virginia Lobby Hours:

Monday:

8:00 am-5:00 PM

Tuesday:

8:00 am-5:00 PM

Wednesday:

8:00 am-5:00 PM

Thursday:

8:00 am-5:00 PM

Friday:

8:00 am-5:00 PM

Saturday:

8:00 am-2:00 pm

Sunday:

Closed

Jacksonville Hours

Monday:

8:00 am-5:00 pm

Tuesday:

8:00 am-5:00 pm

Wednesday:

8:00 am-5:00 pm

Thursday:

8:00 am-5:00 pm

Friday:

8:00 am-5:00 pm

Saturday:

8:00 am-12:00 pm

Sunday:

Closed

Ashland Lobby Hours: CLOSED UNTIL FURTHER NOTICE

Monday:

Closed

Tuesday:

Closed

Wednesday:

Closed

Thursday:

Closed

Friday:

Closed

Saturday:

Closed

Sunday:

Closed

Location

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