Family doctors in Auckland are being invited to a meeting to air any concerns they have about a change to a new company providing all laboratory testing.
Organisers say members of the public and journalists may be welcome at the meeting, but not district health boards or the rival laboratory testing company.
Radio New Zealand's health correspondent reports some GPs harbour concerns about the change from Diagnostic Medlab Limited, to Labtests despite health chiefs giving 10% of the $560 million contract back to DML.
The meeting next Tuesday is being organised by GPs Gerald Young, Ian Rapson and Carmel Built.
They say giving DML 10% of the work may not be enough to lift standards and further action may be needed.
Dr Young says they want to find out if other doctors share their worries about the change.
The Medical Association says it was not involved in calling the meeting.