Chapa, Vivianna, Jaclynn

Catherine Turner, PA-C is a dermatology specialist at Kelsey-Seybold Clinic.

Crysta Williams, PA-C, first completed advanced individualized training at Fort Sam Houston in the U.S. Army's Interservice Physician Assistant Program. She then attended the University of Oklahoma, earning her Bachelor of Science in biology in 2020. Crysta then went on to the University of Nebraska Medical Center College of Medicine, where she pursued her Master of Physician Assistant Studies, completing her degree in 2024. Crysta joined Kelsey-Seybold in February 2025. She loves to listen to people, knowing it makes a world of difference to be truly heard by a provider who genuinely empathizes and will act on patient concerns. Crysta treats patients for a variety of orthopedic concerns, such as sports injuries, arthritis, and joint pain.