After the death of Allan Kardec Spiritism continued to spread and was internationally famous. Many well educated people from Europe and the United States embraced Spiritism as a logical explanation of reality, including themes related to transcendence, such as God and afterlife. Thousands of Spiritist centres
were founded throughout Europe, North America and, especially, Brazil and the Spiritist principles were so much disseminated in some countries that Spiritism was considered for inclusion in regular school and college programmes in Europe.http://en.wikipedia.org/wiki/History_of_Spiritism
It's probably ok to say "I'm a Spiritist," or "I'm a Spiritualist," but I think I've heard someone refer to himself as a "Kardecian."
Would the Bairral Hospital in Itapira belong to the Espiritas? Do you know?