A former GP registrar accused of rorting hundreds of thousands of dollars in Medicare rebates says she is launching a conference to teach doctors on the regulation of Medicare billing.

Dr Anchita Karmakar went public in Australian Doctor in 2017 to reveal she was being investigated by the Professional Services Review (PSR) over $498,000 worth of allegedly inappropriate claims she had made.

The then-GP registrar, who had been working for a deputising corporate on the Gold Coast, was accused of billing items such as care plans and urgent after-hours attendances without clinical need.

Dr Karmakar claimed she had only been doing as she was taught by her bosses and had a unique group of unhealthy Japanese patients who relied on her language skills.