Research Fellows
Clinical Research Fellows
Clinical education and research in the field of shoulder surgery and sports medicine are key focus areas at Mayo Clinic In Florida. Dr. Erick Marigi currently welcomes clinical research fellows both nationally and internationally to join his research team and collaborate on research that aim to further enhance patient care and clinical outcomes.
2025 – 2026
Dr. Seif El Masry
Seif El Masry is a clinical research fellow under the guidance of Dr. Erick Marigi at Mayo Clinic in Florida. He earned his medical degree from Georgetown University School of Medicine. Following the completion of his research year he will begin orthopedic surgery residency at the Mayo Clinic in Florida as part of the inaugural class of 2031. During his fellowship, Seif led a diverse portfolio of projects spanning clinical outcomes research, surgical techniques, and biomechanical investigations.
He served as first author on the majority of his projects and expects to complete more than 20 peer reviewed publications from this year alone. At the 2026 AAOS Annual Meeting, his abstract was one of only two selected for an interview feature by the Editor in Chief of AAOS Now out of more than 100 abstracts reviewed in its respective category.
Seif’s academic interests include sports medicine, arthroplasty, foot and ankle surgery, biomechanics, and innovation in surgical technology. He is particularly interested in the intersection of performance, durability, and long term outcomes in active patient populations. Outside of research and clinical work, Seif enjoys staying active, spending time outdoors, traveling, and recently learned how to surf during his time in Jacksonville.
2024 – 2025
Dr. Cristobal Lopez Le-Beuffe
Cristobal Lopez Le-Beuffe is a clinical research fellow under the guidance of Dr. Erick Marigi at the Mayo Clinic in Florida. He graduated with maximum distinction from the Facultad de Medicina at Pontificia Universidad Católica de Chile in Santiago, where he is in the final year of his orthopedic surgery residency.
During his academic training, Cristobal was actively involved in extracurricular activities including orthopedic scientific societies organizing local orthopedic conferences for undergraduates, teaching medical students, and participating in clinical research. He was also a member of the university’s rugby team.
His research interests focus on sports medicine, knee and shoulder surgery. After completing his residency, Cristobal aims to pursue a clinical fellowship in knee or shoulder surgery and continue his development as an academic orthopedic surgeon. In his free time, Cristobal enjoys outdoor and athletic activities. He spends his time running, hiking, and participating in team sports with friends. He is grateful for the opportunity to deepen his knowledge and experience in sports medicine during his time at the Mayo Clinic.