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 Christopher Wilhite, DVM

Dr. Wilhite earned his Doctor of Veterinary Medicine degree in 1996 from the University of Missouri College of Veterinary Medicine. In 1998, he founded Wilhite Equine Veterinary Services, P.C., which is now doing business as Wilhite and Frees Equine Veterinary Services. Memberships include: AAEP; AVMA; MVMA; KCVMA; and the Missouri Academy of Veterinary Practioners (MAVP).

Karl. E Frees, DVM, MS, DACVS

Dr. Frees earned his DVM degree in 1997 from the University of Missouri College of Veterinary Medicine. He completed a 1-year internship in equine medicine and surgery at Rood and Riddle Equine Hospital in Lexington, Kentucky and a 3-year residency in large animal surgery at Kansas State University in Manhattan, Kansas. During the residency Dr. Frees also obtained a Master's degree in Veterinary Clinical Sciences; his thesis was on hyaluronic acid. In 2003 Dr. Frees attained Diplomate status in the American College of Veterinary Surgeons (ACVS) as a Board Certified Surgeon. Dr. Frees has published articles in scientific journals and has served as a reviewer for the American Journal of Veterinary Research and the Journal of the American Veterinary Medical Association.

He often speaks on equine and veterinary subjects to groups ranging from local 4-H clubs to International Conferences. His interests include lameness, rehabilitation, joint therapies, arthroscopic surgery, abdominal and soft-tissue surgery, and regenerative medicine.

When not working with your horses, he enjoys time with his family; which usually means discussing chemistry and genetics with his boys and tending their honeybees or any number of creatures they currently care for.

Anne M. Nicholson, DVM, MS, DACVS

Dr. Anne Nicholson grew up in the mountains of North Carolina and started riding horses when she was six years old. She rode and competed in a variety of disciplines from competitive trail riding to 3-day eventing. She completed her undergraduate degree in Animal Science at North Carolina State University, competing on the intercollegiate dressage team while there. Dr. Nicholson obtained her veterinary degree at North Carolina State University's College of Veterinary Medicine. Next was an internship in Large Animal Medicine and Surgery at the University of Georgia. She then completed a 3 year residency in Large Animal Surgery and obtained her Master's degree at the University of Minnesota and became a board certified diplomate of the American College of Veterinary Surgeons in 2010. She has special interests in minimally invasive surgery (laparoscopy), muscle disorders, rehabilitation therapy and emergency surgery. Dr. Nicholson moved to Kansas City, MO in February 2014 with her two dogs, Lucy and Rocco. She enjoys participating in the sport of dock diving with Rocco, and is an avid collector of drink koozies.


Christina T. Braun, DVM 


Dr. Christina Braun, a Connecticut native, has been an avid rider and equine enthusiast since the age of six. Her formative years were spent riding at the New Canaan Mounted Troop where she learned all aspects of horsemanship and showed her pony locally. Following graduation from Cornell University in 2000, Dr. Braun worked at a mixed animal practice in southwest Florida before returning to the northeast to join Fairfield Equine Associates in 2002, and later Dunbarton Equine in 2004. Dr. Braun has been certified in veterinary acupuncture since 2004 and veterinary chiropractic since 2006. Dr. Braun relocated to Missouri in 2013 and joined Wilhite and Frees in 2014.

Katie D. Sisk, DVM


Dr. Katie Sisk joined Wilhite and Frees Equine Hospital at the beginning of June 2015. Dr. Sisk grew up in Shelbyville, KY and has been riding since the age of four. She participated in United States Pony Club throughout her youth and was also an avid three day eventer. Dr. Sisk moved to Carthage, MO at the age of 13 where her family operated an equine boarding facility, Edge of the Road Farm. She attended the University of Missouri-Columbia and attained both a bachelor's of Animal Sciences in 2012 and a Doctor of Veterinary Medicine in 2015. Dr. Sisk enjoys all aspects of equine medicine and surgery, but is especially interested in sports medicine and rehabilitation. Outside of work, she enjoys riding her horse, Curious George, and spending time with her husband, Cole, and their two dogs, Herbee and Charles.

Christy Sontag, DVM


Dr. Christy Sontag grew up in a suburb of St.Paul, Minnesota. She was the typical horse crazy little girl and was lucky enough to have parents who recognized her passion and started her in riding lessons when she was 8 years old. She grew up dreaming of becoming an equine veterinarian much to the dismay of her very patient childhood pets. She graduated from the University of Minnesota, Morris with a bachelor of arts in Biology and a minor in Business Management in 2012, and received her veterinary degree from University of Minnesota College of Veterinary Medicine in 2016. Dr. Sontag has a strong passion for all of equine medicine but especially loves opthomology and lameness cases. Outside of work, Dr. Sontag enjoys loving on her retired barrel racing mare, April, riding her motorcycle, and reading. 

Shanna Nelson, DVM


Dr. Shanna Nelson grew up in southwest Missouri.   She received her first horse as a gift at age 11, and never looked back. The horses multiplied, and her interest in their care grew, eventually becoming a career calling.  In college, Dr. Nelson worked both as a veterinary assistant and as the trainer/manager for an Appaloosa farm, and she competed for years in barrel racing, while dabbling in other disciplines.  She graduated from Drury University in 2011 with a Bachelor of Arts in Biology, a minor in Global Studies, and received her veterinary degree from the University of Missouri in 2016.  Dr. Nelson's four beloved, retired horses Rebel, Buddy, Brandy, and Bones currently live with her parents in Fair Grove, along with her Heeler mix, Dobie.  Outside of veterinary medicine, her interests include music, literature, and art.



Debra graduated from Auburn University with a Bachelor of Science degree in Agriculture Animal and Dairy Science and a Master of Science degree in Agricultural Economics. She worked at Lane's End in Versailles, Kentucky and was the owner of a Thoroughbred breeding farm in New York. Debra's children include 2 dachshunds, Mint Julep and Mai Tai, a Lab mix named Bailey's Irish Cream, a cat named Arrow and her horse, River of Fortune. Debra joined Wilhite and Frees in November 2005.


Chantal attended Longview Community College. She spends the majority of her free time with her American Quarter Horses and Appaloosa/Quarter Horse cross preparing for her upcoming show season in reining and working cow horse. Chantal loves horses, enjoys concerts, photography, traveling, Chinese food and seafood. Chantal joined Wilhite and Frees in February 2014.



Heather grew up in northern Illinois as a huge Greenbay Packers fan and has been riding horses since she was 7 years old. She has always loved animals and knew they needed to be a part of her daily life. She attended William Woods University, and graduated with a Bachelor of Science Major in Equestrian Science with a concentration in Dressage. After graduation, she worked as a groom/rider at a dressage barn where she rode up to Prix St. George. Heather has been a veterinary assistant since Fall 2016 and loves every minute of it! In her free time she loves spending as much time as possible with her wonderful fiancé, her two silly cats, Sparta and Apollo, riding horses, running, and spending as much time outside as possible. One day she hopes to have her own horse…or two.


Office Staff

Hannah - Office Manager

Hannah, originally from San Antonio, Texas, insisted on learning to ride at the age of 3, but had to wait until her 4th birthday to begin saddleseat lessons. She grew up in the American Saddlebred and Arabian show industries, working at various show barns in Texas and later in Missouri. She has shown competitively across the country since the age of 5. Hannah graduated from William Woods University with a Bachelor of Science Major in Equine Administration and a Minor in Equine Science with a concentration in Graphic Design. She has a Half-Arabian show horse, CSP Hot Tamale and a miniature wire-haired dachshund, Toby and two black labs, Duke and Horton. When not working, Hannah enjoys spending time with her husband, traveling and being out on the lake. Hannah joined Wilhite and Frees in January 2013.

Contact Hannah at: hannahwfeh@gmail.com

Sydney - Scheduling

Sydney grew up in rural Southeast Nebraska, where her love of large animals blossomed on her family's farm. She worked at her home town veterinary clinic, a mixed animal practice, from junior high until she graduated from high school. Following high school she moved to Kansas City to attend Maple Woods Veterinary Technology Program. Sydney completed the program in May 2014 and joined Wilhite and Frees in August 2014.  Outside work she enjoys team roping with her husband and is a member of the United States Team Roping Championships. Sydney has five Quarter Horses, a Border Collie/Blue Heeler mix named Max, an Italian Greyhound named Weasel, Border Collie named Sam, and their cat Spike. 

Contact Sydney: sydneywfeh@gmail.com

Louie - Supervisor

Louie joined the Wilhite and Frees team in the Summer of 2014. He had previously shared a home with an older member of Laura Frees' family. He arrived a somewhat quiet and timid cat; this lasted approximately 13.5 hours at which he obtained the FIC (Feline in Charge). Anyone who has visited our hospital knows Louis as the consummate greeter and entertainer; ready for any occasion as he is always wearing his formal attire. 

Office Hours

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