The system has been marred by a string of errors, including more than 7,000 cases of people's health insurance data being mistakenly registered to others.
He said the government is sticking to its plan to scrap the cards in the fall of 2024. But he said that the timing could be delayed, depending on the results of the inspection.
He said people who do not have the integrated My Number cards will receive certificates so that they can continue to access insurance-covered medical treatment.