Kassidy grew up in Rocksprings, Texas where she was a 14-time Texas State Champion in track and cross country.  She went on to run track at Baylor University where she received a Bachelors of Science in Education.  Kassidy attended PA school at George Washington University in Washington, DC and graduated with a Master of Health Science and Physician Assistant Certification in 2005.  After graduation, she started working with Texas Orthopaedic Associates, primarily with Dr. James Walter, who specializes in sports medicine.  Kassidy also assists him with taking care of many high school teams, including serving as the Little Elm High School football team PA.

Kassidy resides in Frisco. She enjoys traveling, sports, fashion design and spending time with family and friends.