Trung Tam Y Te Du Phong Huyen Phu Yen Address: Khoi 2, Phu Yen Town, Phu Yen District, Son La Province Enterprise code: 5500354486 Phone: 02123863239 Phu Yen Town, Phu Yen District, Son La ProvinceFounding date: 20 - 3 - 2009