Maestro Mateo Arévalo Maynas is a Shipibo healer and community organizer. He has been involved with many Shipibo cultural, medical, and political federations, including AMETRA, COSHIKOX, FECONAU, and AIDESEP. He is currently a manager of the Shipibo union of healers, ASOMASHK. He is 64 years old and has been a practicing healer working with ayahuasca and other plant medicines for 39 years. He lives in the remote Peruvian community of San Francisco, Yarinacocha, near Pucallpa.