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Intern Doctors

  • Dr. Georgia Jellen headshot as an intern veterinarian at Pioneer Equine Hospital.

    Dr. Georgia Jellen

    Dr. Georgia Jellen is from Seattle, WA. She grew up riding horses and showing in 4-H. She went to Cal Poly San Luis Obispo for undergrad, and pursued her passion for equine veterinary medicine further there, enjoying foaling, colt starting, breeding, and working at The Equine Center, SLO. Seeing the difference that horses make in the lives of their people, she grew a strong passion for supporting the bond between people and their equine companions. She attended Washington State University for veterinary school, and is excited to be back in the sunshine with a wonderful team at Pioneer Equine. She plans to go into general practice after internship. Her two horses, Tulsa and Chessie, have come with her on all of the adventures, and she likely will be found riding them between evening emergencies throughout the year.   

  • Dr. Lucas Thacker's headshot as an intern veterinarian at Pioneer Equine Hospital

    Dr. Lucas Thacker

    Dr. Lucas Thacker is from Lompoc, California. He got my B.S. in Kinesiology at Cal Poly SLO. During his undergraduate, he worked at The Equine Center in SLO and Alamo Pintado before going to vet school at UC Davis. While at Davis, he worked in Livestock barn all 3 years prior to clinics. In his free time, he enjoys exercising, golfing, fishing, hiking and snowboarding. His career goals are to become an ambulatory equine general practitioner with special interests in reproduction and sports medicine.  

  • Dr.Audrey DeZell's headshot as an intern at Pioneer Equine Hospital

    Dr. Audrey DeZell

    Dr. Audrey DeZell is originally from Highlands Ranch, Colorado. She completed her Bachelor’s degree in Animal Science at Montana State University and completed her Doctor of Veterinary Medicine degree at the University of Minnesota. During vet school, she was president of surgery club and was also involved in the business management and equine clubs. She is interested in sports medicine and surgery and is considering doing a large animal surgery residency following her internship. In her free time, she enjoys cooking and baking, hiking, fishing, reading, and taking care of her many plants.   

Please welcome the 2026-2027 Intern Class