Guerrero (8 January 1877–4 January 1919) was a Filipino medical doctor who studied beriberi in infants in the Philippines.Guerrero was born in Ermita, Manila then became part of the Captaincy General of the Philippines in 8 January 1877.
He achieved a Bachelor of Arts degree at the Ateneo Municipal in the year 1894 and a Doctorate on Medicine at the University of Santo Tomas in 1902.He was also a writer for the publications "La Republica Filipina, La Independencia, and La Patria".
in addition he was a staff member of the Revista Filipina de Medicina y Farmacia.
Guerrero was also a member of the Colegio Medico-Farmaceutico, Asamblea de Medicos y Farmaceuticos de Filipinas, and the Sanggunian ng Kalusagan.
He was also one of the founders of t La Infancia and Gota de Leche.Guerrero was also conferred with a silver medal at the Louisiana Purchase Exposition and the Panama Pacific Exhibition.