A prominent crime victims' advocate and psychologist misled and exploited clients on a website, failed to provide appropriate counselling services and prioritised getting compensation, a tribunal has found.

A Victorian Civil and Administrative Tribunal panel this week handed down a decision that registered psychologist Domenic Greco had engaged in professional misconduct and unprofessional conduct between July 2007 and June 2010 and July 2010 to October 2013, in contravention of the Health Professional Regulation Act and Health Practitioner Regulation National Law.

Mr Greco, who said the allegations were part of a "high-reaching conspiracy", owned the Victims of Crime Counselling and Compensation Service, which provided counselling and legal services.

The VCCCS website still lists Mr Greco as "the psychologist located within our offices".

Following a 12-day hearing the tribunal found 19 of 26 allegations proven, including that the company's website exploited victims of crime by sharing their traumatic experiences for advertising purposes, including the case of a young rape victim.

One woman who gave evidence against Mr Greco alleged he had dismissed her experience of a violent crime and failed to provide counselling after she reached out for help.

The tribunal found another person, who turned to the organisation as a victim of child sexual assault, was assessed in a way that was clinically inappropriate or insensitive and had the potential to traumatise them.

Mr Greco also overcharged for reports and provided psychological reports recommending payments in cases where there was no need, including one case where “the reports and request were excessive, clinically unnecessary and inappropriate”, VCAT found.

The VCCCS website was also misleading because, among other reasons, it bore a likeness to a government website, suggesting an official association with the Victims of Crime Assistance Tribunal, the regulatory body responsible for awarding compensation to victims.

The website had stated victims could be awarded up to $100,000, without explaining that the maximum was rarely paid and the average victim payout was about $8000.

“The website clearly focused the reader on receiving monetary assistance rather than the benefit of psychological services,” VCAT senior member Ian Proctor wrote in the findings.

“This website continues to advertise sums of money as the principal outcome of service and the same sums that were previously shown to be misleading.”

Mr Greco fought all allegations against him at the hearing, which concluded in May.

"All I've done for the past 15 years is try to promote victims' rights," he told Fairfax Media. "This has been four to five years of harassment and intimidation because I criticised the victims-of-crime support model."

However, the panel found it had not seen any evidence to support Mr Greco’s conspiracy theories.

“In our view there was no evidential basis for and we reject Mr Greco’s submissions that 'government organisations' such as the board, AHPRA, the Victorian Department of Justice, the Victorian Legal Services Commissioner and the Victorian Attorney-General either acted corruptly or consented to act corruptly,” Mr Proctor wrote in findings.

VCAT will make determinations about the findings later in the year.