Dr. Luis González Bayón has developed his professional career as a General Surgeon in leading hospitals in Spain, becoming an excellent professional in General Surgery at the Hospital General Universitario Gregorio Marañón. 

Likewise, to reach this position, González Bayón specialized through international stays and developed his thesis Role of macrophages in the development of hepatic metastasis of colon cancer. Experimental study in rats. In this way, he has managed to become one of the referents in this area.  

• General Surgeon at the University General Hospital Gregorio Marañón.
• Director of the Malignant Peritoneal Disease Program at the Gregorio Marañón University General Hospital.
• Member of the Adult Clinical Liver Transplant Group at the Hospital General Universitario Gregorio Marañón.
• Member of the Advanced Oncologic Surgery Group for Abdominal and Pelvic Tumors at the Hospital General Universitario Gregorio Marañón.
• Fellowship funded by the International Union Against Cancer (UICC) for the Study of Malignant Peritoneal Disease in the Department of Surgical Oncology at
• the Washington Cancer Institute with Dr. Paul H. Sugarbaker.
• European Board of Surgery Qualification in Surgical Oncology of the European Society for Surgical Oncology. Paris 
• Dr. degree with Cum Laude from the Complutense University of Madrid with the thesis Role of macrophages in the development of liver metastases in colon cancer. Experimental study in rats
• Associate Professor of Surgical Pathology at the Complutense University of Madrid.