IOB pioneers in oncology

IOB was founded in 1998 by Dr. Baselga and Dr. Tabernero, who currently directs the Gastrointestinal cancer unit and was the president of the European Society for Medical Oncology (ESMO) 2018-2019 and is currently a member of its Board of Directors. 

The collaboration between the Quironsalud Group, a leader in Spain in healthcare services with more than 60 years of experience caring for people’s health, and IOB, a pioneering medical organization in Spain in the approach to cancer, ensure a complementary nature with the subsequent benefit to our patients in the present and in the future.

IOB is made up of a group of specialists who are internationally renowned in each of the areas of oncology and hematology; a multidisciplinary team that provides an overall and complete view of cancer that is always focused on the patient’s personalized therapy. 

Our oncologists are pioneers in the design and development of clinical trials and precision oncology. Their extensive experience in the clinical setting and the laboratory environment allows each one of IOB’s oncologists to be experts in a specific pathology and to be able to decide what is the most suitable treatment for each patient. 


We make every effort to achieve excellence in every detail of the patient’s oncological care through research, the latest advances in diagnostics and in prevention, as well as personalized treatment and follow-up.

All with the common team goal to offer the best response to the emotional needs of each patient and their family.


To be the private oncological center of reference in Europe thanks to the excellence of our team, our dedication to knowledge and the constant quest for continuous improvement.

Our values

Ethics, humanity, professionalism, innovation, teamwork and continuous improvement are some of the values that define us as a team.