Alcohol Drug Association New Zealand

The main website - https://alcoholdrughelp.org.nz - has links to its co-ordination and helpline services. Publications refers to its newsletters and submissions.
There is also a link on this page to the Addictions Treatment Directory - www.addictionshelp.org.nz. This can be read as a PDF, broken down by regions. There is also an online, searchable directory.
Alcohol Drug Helpline 0800 787 797 https://alcoholdrughelp.org.nz/helpline/about-us/

Replaces the hard copy Alcohol and Drug Directory of Services in New Zealand.
Addiction Alcohol Drug Abuse Treatment Referral Services