Fuentes-Alabi obtained her master in public health from T.H. CHAN Harvard School of Public Health and established the first Population-Based Pediatric Cancer Registry in El Salvador and contributed to Guatemala, Nicaragua, and Honduras Population-Based Pediatric Cancer Registries implementation. In 2017, Dra. Fuentes-Alabi joined The Lancet Oncology Commission on Childhood Cancer in Low and Middle-Income Countries. The Commission's goal was to identify a core set of interventions and diagnostic, treatment, and care services to address childhood cancers, including evaluating these services' cost-effectiveness. She also is an active member of the Association de Hemato-Oncología Pediátrica Centro Americana (AHOPCA), founded to narrow the pediatric cancer survival gap. As an AHOPCA member, Dr. Fuentes-Alabi has been part of several regional efforts to develop well-focused initiatives in pediatric cancer that seek to create intensity-adjusted treatments while building prospective evidence-based protocols ( Principal investigator for Neuroblastoma-AHOPCA-2012 Protocol).

Dr. Fuentes-Alabi has been part of the National Committee to develop El Salvador's National Plan for the Comprehensive Approach for Children and Adolescents with Cancer. Currently, she collaborates with PAHO/WHO as an International Consultant for Global Initiative for Childhood Cancer and will support the Ministries of Health in the development and implementation of childhood cancer plans in Central America.