Insolvency documents list Carolina Isabelle Wiseman as one of Nina Carrington's aliases and recorded her occupation as a real estate agent.
Carrington attempted to fight the bankruptcy and told Associate Judge John Matthews that the Australian judgment was a miscarriage of justice.
However, she did not give evidence in the Australian case, where Gudmundsen alleged she misappropriated A$490,000 from him when working at his skin clinic in the small town of Lismore.
Justice James Stevenson in his 2012 decision said Carrington's behaviour, on the face of it, was "highly irregular".
It involved an employee of a medical practice "transferring a little under half a million dollars from her employer's account to her own, over a period of some two years", he said.
The Australian judge accepted that Carrington made payments to Gudmundsen's creditors for which she was entitled to reimbursement.
However, he also said she made "unauthorised payments which were masked as authorised payments".
Apart from payments for expenses, which included wages, stationery and kitchen items, Justice Williams said Gudmundsen was entitled to compensation for money Carrington transferred from the business accounts to her own.
He entered judgment in favour of the dermatologist for A$371,677.46.
Gudmundsen, who said he met Carrington at a "new-age" church, this week described the incident as a nightmare.
"It was pretty horrible, we almost went bankrupt because of her diddling of the books and all the bank accounts. It's put me back several years in terms of being able to pay off my home."
He said that Carrington had manipulated him and "just about ruined" his life.
Wiseman did not deny she was Carrington when asked about whether she was using a different name.
She did not, however, want to discuss her case and has not yet responded to emailed questions yesterday.
Summit Real Estate director, Allister Nalder, did not return calls.
