Dr. Christina Allen specializes in the treatment of knee and shoulder injuries, especially those of women athletes. An avid soccer enthusiast, she is an expert in treating Anterior Cruciate Ligament (ACL) injuries and shoulder athletic injuries. She has a special interest in meniscus transplantation, ACL Revision surgery, and proximal hamstring avulsion repairs, which are focus areas for her research.

Dr. Allen is an Orthopaedic team physician for US Soccer. She has traveled extensively with the Women's and Men's teams to Russia, China, Brazil, Germany, Japan, Poland and Mexico and will be traveling with the U-20 Women's National Soccer Team in 2020 on the road to their U-20 FIFA Women's World Cup in Costa Rica and Panama. She was also the Orthopaedic Team physician for the San Francisco Deltas professional soccer team which won the NASL championship in 2017.

She is also the former Head team physician for the USA Taekwondo National Team. She has traveled with the team to many countries including China, Azerbaijan, Russia, Turkey, Mexico and Rio for international competitions. She also served as the USA Taekwondo team physician for the 2012 Olympics in London and the 2016 Olympics in Rio de Janiero, Brazil. Currently she serves on the Medical Board for World Taekwondo, the International body for Taekwondo, and serves as an Orthopaedic consultant, providing medical coverage at international events.

She is also a former Orthopaedic Team Physician for Cal athletics at the University of California at Berkeley, working with Men’s and Women’s Soccer and Women's Basketball until 2017

Dr. Allen earned a bachelor's degree in Biomedical Engineering at Duke University and was Chief of Biomedical Engineering at the Veterans Affairs medical centers in Philadelphia and San Francisco before attending the UCLA School of Medicine. She completed her Orthopaedic Surgery Residency at the University of Pittsburgh and her Sports Medicine and Shoulder Surgery Fellowship at the University of Pittsburgh.