American Board of Internal Medicine (ABIM) in Internal Medicine, Hematology, and Medical Oncology.
Graduated from the University of Medical Sciences (UCIMED) of Costa Rica, with postgraduate training at Harvard (USA), Karolinska Cancer Center (Sweden), University of Turin (Italy), Peter MacCallum Cancer Center (Australia), and Hennepin County Medical Center (Minnesota, USA).
Member of the American Board of Internal Medicine (in Hematology and Oncology). Currently, he is a university professor at the University of Minnesota and UCIMED.