Centro Médico Teknon
Centro Médico Teknon
Spain, Barcelona
Alberto Diez-Caballero Alonso
34 years of experience
accreditations :
Clinic is certified :
Dr. Xavier Centeno specializes in pancreatic cysts at Centro Médico Teknon, with advanced training at Mayo Clinic and Cleveland Clinic Florida.
Dr. César Canales has led General and Digestive Surgery and the Laparoscopic and Robotic Surgery Unit at Hospital Ruber Internacional (Madrid) since 2015. He is a General and Digestive Surgeon with over 30 years of experience. He specializes in laparoscopic and Da Vinci robotic surgery for complex abdominal, oncologic, and abdominal wall cases.
He holds a PhD (cum laude, UAM) and an MD (with honors, UCM). He completed his specialist training at Hospital General Universitario Gregorio Marañón. He is also certified by the Military Medical Corps. He has authored over 70 publications and 12 book chapters, including the Manual of Surgery (McGraw-Hill). He has served as faculty in more than 16 courses. Awards include Forbes Top 100 Doctors (2024), Top 5 General and Digestive Surgeons in Spain (2021–2024), La Razón Doctor of the Year (2024), and El Confidencial Best Doctors in Spain (2025).
The doctor is a specialist in general surgery with a focus on digestive tract and minimally invasive surgeries, particularly laparoscopic techniques. With extensive teaching experience, the doctor served as an Associate Clinical Lecturer at the University of Navarre School of Medicine from 1996 to 2003, and lectured in doctoral courses on laparoscopic surgery in 2002 and 2003. The doctor is an active member of several professional associations, including the Spanish Association of Surgeons, the Spanish Society of Obesity Surgery, and the European Association for Endoscopic Surgery.