Northern Downs Health Service District (Southern Zone) Slessar Street, Chinchilla, PO Box 365, QLD, 4413, Australia and New Zealand, Oceanic, Australia Phone: 61-7-4662 8843, Cellular: 61-7-4662 8230 For more information call Enquiry Northern Downs Health Service District (Southern Zone) 61-7-4662 8843 or click here to email.