- Catedrático de Pediatría (UAM)
- Director, Dept Pediatría (HIUNJS)
- Director, Laboratorio de Investigación
- 1980 M.D University of Zaragoza, Spain) “First Award Summa cum Laude”
- 1985 PhD (University of Alcalá de Henares, Madrid, Spain)
- 1986 “First Award Summa cum Laude” of Doctoral Thesis
- 1984 Pediatrician (Hospital Ramón y Cajal, Madrid, Spain)
- 1986 Pediatric Endocrinologist (Hôpital Saint Vincent de Paul, París, France).
- 1986-1987 Postdoctoral Fulbright Fellow (UVA, Charlottesville, VA, USA)
- 1987-1989 University of Washington, Seattle, WA, USA
- Current position: 1) Full Professor of Pediatrics & Pediatric Endocrinology & Director, Department of Pediatrics (Universidad Autónoma de Madrid); 2) Chairman, Department of Pediatrics & Endocrinology (University Hospital Niño Jesús); 3) Director, Laboratory of Research (growth, obesity, puberty, eating disorders and diabetes); 4) CIBEROBN. Instituto de Salud Carlos III. Madrid. Director, Programme of Childhood Obesity; 5) IMDEA Food Institute. Associate Researcher.
- Original articles, reviews, textbook chapters and books: more than 500.
- ESPE Henning Andersen Prize (Vienna, Austria, 1989)
- ESPE Young Investigator Award (San Francisco, CA, USA, 1993)
- ESPE Henning Andersen Prize (Milan, Italy, 2013)
- ESPE Henning Andersen Prize (Barcelona, Spain, 2015)
- Member of the Spanish Royal National Academy of Medicine (2018)
- ESPE Andrea Prader Award (Vienna, Austria, 2019)
- Visionary Award from the Human Growth Foundation (2020)
- XVI Hipocrates International Award (2021)
- Lectures in 35 countries in Europe, America, Africa & Asia and in the main scientific societies in pediatric endocrinology and Endocrinology (ESPE, SLEP, ASPED, SEEP, Endocrine Society, among others)
- ESPE Past-President (2002)
- Spanish Society for Pediatric Endocrinology Past-President (2004-2008)