We won an O1 Visa for the applicant who is known world wide for his expertise is in the area of solid organ transplant pathology. He was working as a surgeon at a prestigious institute. We offered evidence to show that he is part of the small percentage in his field that have achieved the highest level of success and thus is known throughout the world as one of the best surgeons in his specialty. We submitted opinion letters from various world-renowned experts describing the innovative and pioneering results of this applicant's work. While continuing to conduct surgery, this applicant also engaged in significant research and published his extraordinary findings in prestigious scholarly medical journals. His list of contributions to the field was extraordinary, defining him as one of the true leaders in his field.