In a recently released decision, the tribunal said sexual offending against patients would always be regarded as "morally, ethically and professionally repugnant".
"Registration as a health practitioner is a privilege which carries with it obligations to act in a way which is in compliance with the standards expected of those who practise as registered health practitioners."
The Professional Conduct Committee (PCC), which brought the case to the tribunal, said Davis' offending breached the trust of vulnerable patients who had placed a high level of trust in him to conduct himself professionally.
The tribunal ordered Davis' registration to be cancelled and that he be censured.
Should Davis obtain his registration in the future, he would have conditions imposed upon him for three years, including not being able to work in a sole practice, and accepting and paying for supervision by another registered osteopath.
Davis was also ordered to pay $6900 in respect of the costs and disbursements of the tribunal and $3635 in respect of the costs and disbursements of the PCC.