Our Team

Dr. John Cummins - Owner

Born in Maysville, Kentucky, Dr. John Cummins grew up working with horses on his family farm. He developed a keen interest in equine lameness and, as a student at Lafayette High School in Lexington, began seeking out opportunities to shadow veterinarians. Dr. Cummins excelled academically, graduating summa cum laude from high school and, later, making the Dean’s List during each of his semesters as an undergraduate student at the University of Kentucky. He followed his passion for equine health to The Ohio State University College of Veterinary Medicine, graduating with honors in 1982. During his veterinary training, Dr. Cummins had the opportunity to learn from many of the best practitioners of our time: Drs. John Steele, Ric Redden, Doug Byars, Marvin Cain, and Paul Thorpe to name only a few. Today, Dr. Cummins’s sport medicine practice treats top equine athletes across multiple disciplines, including World Grand Champion American Saddlebreds, multiple Horse of the Year winning Standardbreds, graded stakes-winning Thoroughbreds, and multi-titled international showjumpers and show hunters. As a true lover of horses and equestrian sport, Dr. Cummins is also a successful breeder - having bred, raised, and campaigned graded stakes-winning Thoroughbreds, champion Standardbreds, and World and National Champion American Saddlebreds.

Dr. Wes Sutter - Owner

Wesley Sutter, DVM, Dipl. ACVS, is the co-owner of Kentucky Equine Hospital. Dr. Sutter was born in Lander, Wyoming. He received his bachelor’s degree in biochemistry from Colorado State University in 1997 and his veterinary degree in 2000. Following veterinary school, he completed a one-year rotating equine surgery and medicine internship at Rood & Riddle Equine Hospital, in Lexington, Kentucky. He then completed a surgical residency at The Ohio State University, where he later served as an assistant professor in equine orthopedic surgery before entering private practice as a surgeon at Ocala Equine Hospital, in Florida. After five years at Ocala Equine Hospital, he co-founded Lexington Equine Surgery and Sports Medicine, also in Lexington. He then joined Rood & Riddle as a surgeon in 2018. His primary interests are in equine orthopedics, upper respiratory surgery, and lameness.

Dr. Sarah Grigoleit - Associate

Sarah Grigoleit, DVM, spent her formative years in southeast Minnesota. She received a bachelor’s degree in equine science from Colorado State University in 2009 and moved to central Kentucky to pursue a life-long passion for horse racing. After several years of working on the racetrack and the farm she opted to further her education and completed her veterinary degree at Lincoln Memorial University in 2019. Following graduation, she completed a rotating internship at Park Equine Hospital in Lexington, KY, and stayed on as an associate until 2022. Dr. Grigoleit joined the KEH team in 2022 focusing on ambulatory general practice. Her professional interests include lameness, reproduction, and internal medicine.

Dr. Louis Johnson - Associate

Dr. Louis Johnson graduated from the University of Kentucky in 1980 then received his DVM from Auburn University in 1983. He completed a large animal internship at the University of GA from ’83 - ’84. In 1984, he joined the practice of Blue Ridge Equine Clinic in Virginia, eventually becoming a partner. In 1996, he returned home to Kentucky and started a solo ambulatory equine practice in Lexington. His practice focused on reproduction, herd health, and general equine practice. He is certified in veterinary acupuncture and veterinary chiropractic. He joined the veterinary staff of the Kentucky Horse Racing Commission in 2014 and continues to work for the commission as a regulatory veterinarian full time. In 2018, he joined the staff of Equine Services, which is now Kentucky Equine Hospital, working part time to this day when he isn’t at the race track. Dr. Johnson and his wife Germaine own War Eagle farm in Shelbyville where they breed and show American Saddlebreds. They have one daughter, Ivy, and one grandchild, Cash.

Dr. Chelsea Klein - Associate

Chelsea Klein, DVM is a Louisville native. She received her bachelor’s degree in science from Centre College and her veterinary degree from Auburn University. She completed a hospital internship at Rood and Riddle Equine Hospital, followed by a rotating internship at University of Pennsylvania’s New Bolton Center. She then completed an equine surgery residency at Iowa State University. Her professional interests include equine orthopedics, upper airway, emergency surgery and lameness. In her free time, she enjoys spending time with family and friends, traveling, and cheering on her favorite sports teams with her husband Zach (go Cats!). 

Dr. Bridget Mason - Associate

Bridget Mason, DVM, obtained her veterinary degree from The Ohio State University in 2009. Her lifelong passion for horses led her to pursue her career in veterinary medicine. Her early riding career was spent learning to ride sport horses she then transitioned to saddleseat and showing American Saddlebreds when she met and fell in love with a Saddlebred. She completed an internship at Equine Services following graduation from veterinary school, then returned to her home of Northeast Ohio to work at Sharon Center Veterinary Hospital as an equine ambulatory doctor. She returned to Equine Services in 2015 to focus on ambulatory and reproductive practice. She remained when Dr. Sutter purchased Equine Services to form Kentucky Equine Hospital in 2020. Her professional interests include mare and stallion reproduction, preventative medicine, emergency care and neonatal medicine.

Dr. Sarah Mouri - Associate

Sarah Mouri grew up in Northern Virginia’s eventing, fox hunting and pony club communities. She completed an ambulatory internship at Rood and Riddle Equine Hospital before joining a sport horse practice based in Westchester Co., NY and Wellington, FL providing services to Hunter/Jumpers and FEI Jumpers and Dressage horses. Dr Mouri relocated to Lexington, KY in 2015 and enjoys working with Thoroughbred and Sport Horse clients with a focus in lameness, rehabilitation and alternative medicine. She offers VSMT/Chiropractic and Veterinary Acupuncture services and is certified in Equine Rehabilitation and Performance (CERP).

Dr. Hayley Sullivan - Associate

Hayley Sullivan, DVM, MS, cVMA, Dipl. ACVSMR, is a Southern California native. She received a bachelor’s degree in animal science from the University of California, Davis and her doctorate from Western University of Health Sciences. She then completed an internship at Peterson & Smith Equine Hospital. Dr. Sullivan went on to obtain a master’s degree and completed a residency in equine sports medicine and rehabilitation through the Orthopaedic Research Center at Colorado State University. There, her research focused on the effect of lameness on the axial skeleton, optimizing rehabilitation programs, and musculoskeletal imaging. Dr. Sullivan is a board-certified veterinary specialist in Equine Sports Medicine and Rehabilitation. She is also an instructor of equine veterinary medical acupuncture and rehabilitation at Curacore Academy. Her professional interests include lameness, diagnostic imaging, rehabilitation, and integrative medicine. A lifelong rider, Dr. Sullivan is a HA pony club graduate and has competed to the FEI level of three-day eventing. In her free time, Dr. Sullivan enjoys riding, concerts, skiing, and family time, with her fiancé Kyle.

Dr. Jack Watt - Associate

Jack Watt grew up in central Texas, where time in the barn with his numerous 4-H and FFA projects put him on a trajectory to pursue a career in Veterinary Medicine. Upon graduation from Texas A&M University, he completed a medicine/surgery internship at Peterson & Smith Hospital in Ocala, FL. He then relocated to Kentucky and focus his veterinary efforts primarily on the racing Thoroughbreds. Kentucky residency also provided the opportunity for involvement with the sporting disciplines, and evolution of Dr. Watt’s primary practice focus. Dr. Watt joined the KEH team in 2021 to offer primary care, lameness and ancillary therapies for the sport horse population within the area. Dr. Watt is also certified through IVAC for chiropractic adjustments. Outside of Veterinary practice Jack enjoys the lively adventures of fatherhood with his two sons and wife… the veterinary authority of their household.