National Authentication Service for Health

Healthcare providers and supporting organisations use the National Authentication Service for Health (NASH) to securely access and share health information.

NASH Public Key Infrastructure (PKI) certificates help you to:

We’ve upgraded the NASH authentication system to strengthen security. You’ll need to contact your software provider about updating your software to a SHA-2 ready version.


You’re eligible for a NASH PKI certificate if your organisation is registered in the HI Service. Your organisation can either be a:

  • healthcare provider organisation
  • contracted service provider
  • general supporting organisation that assists in the delivery of digital health.

Read about applying for your healthcare identifier and NASH PKI certificate.

Page last updated: 11 April 2023.
QC 23091