Mariana Castells

Mariana Castells is a Spanish-American allergist who focuses on mast cell diseases, including mastocytosis, mast cell activation syndrome and hereditary alpha tryptasimia. Mastocytosis is a rare disease with limited treatment options. Castells works at Brigham and Women's Hospital in Massachusetts in the Department of Allergy, Rheumatology, and Immunology and at the Dana Farber Cancer Institute. She is also a professor of medicine at Harvard Medical School.