As veterinarian and owner of Harvard Equine Practice in Harvard, Illinois, Dr. Phillip Kapraun focuses on the diagnosis and care of Standardbred racehorses and quarter horses with lameness-related conditions. He stands out as a pioneer in the use of honeybee venom to treat navicular disease, a chronic condition of the equine forelimb. Thanks to Dr. Phillip Kapraun's work, this therapy has become a topic of study at the University of Illinois.

Dr. Phillip Kapraun maintains close ties to the University of Illinois, having collaborated with the university's Dr. Kevin Kline and Dr. Santiago Gutierrez. He has worked with Dr. Kline on several papers involving osteochondrosis, including a study that investigated the effects of the condition on two- and three-year-old Standardbred racehorses and their performance. Similarly, Drs. Kline and Kapraun have investigated and reported on the relationship between a horse's gender and sire and the animal's likelihood of developing osteochondrosis, osteochondritis dissecans, and similar bony lesions.

Dr. Phillip Kapraun pioneered the concept of early diagnosis and early removal of osteochondrosis lesions, focusing particularly on the importance of assessment and removal of the disease's characteristic lesions in yearling Standardbred racehorses. Since establishing this as his own standard practice, he has seen it become common across the equine medicine profession.