Stem Cells Transplant Institute Staff
Behind every treatment at the Stem Cells Transplant Institute is a dedicated team of specialists who believe in combining science with empathy to improve lives.

Dr Leslie Mesen
Founder
Dr. Leslie Mesen, the visionary founder of the Stem Cells Transplant Institute in San Jose, Costa Rica, specialized in treating human diseases with mesenchymal stem cells. He also co-founded the Anti-Aging and Wellness Clinic, leading its expansion to multiple countries across America.
Dr. Mesen was widely recognized for his contributions to healthcare, earning numerous awards and honors throughout his career. He held three PhDs, underscoring his deep commitment to medical research and innovation.
His dedication to patient care and medical excellence laid the foundation for both the Stem Cells Transplant Institute and the Anti-Aging and Wellness Clinic. Dr. Mesen’s legacy continues to inspire our work, focusing on improving patients’ quality of life through cutting-edge research and personalized care. Though he is no longer with us, his spirit remains at the heart of our mission.
Staff

Sebastián Mesen
CEO

Dr. Heidy Chaves
Medical Officer

Dr. Andres Alpizar MQC
Chief Laboratory Manager

Jose Mesén
Laboratory & Clinical Operations Director

Priscilla Arroyo, RN
Chief Nursing Officer

Ronald Alvarado
Chief Sterile Processing Technician

Iony Madrigal
Patient Coordinator

Jose Castro
Patient Coordinator
San José, Costa Rica
info@stemcellstransplantinstitute.com
+1 888 785-4170