The head of the Tairawhiti District Health Board said a radiologist it employed for several years should have informed them he was wanted on a sex charge in the United States.
The DHB first learned about Max Mehta being charged with grooming a 15-year-old girl in Texas in 2004, when the UK's Guardian newspaper reported it last week. But it did know about him changing his name in 2007 to Robert Taylor.
Board chief executive Jim Green said the radiologist worked for them remotely from 2006 or 2007 up until earlier this year. He said the charges should have been disclosed to them.
Mr Green said Dr Taylor provided a reliable diagnostic radiology service to patients while employed by the DHB and there are no plans to review his work.
The UK's Guardian newspaper said after Mr Mehta was charged in the US he skipped the country, moved to New Zealand and worked in Canterbury.
After working in New Zealand he traveled to Australia, aworking remotely for the Gisborne-based DHB. The Australian Medical Board is now taking action against him.