But expert evidence provided to the court established it was not necessary for a patient to be erect for an STI check and that the "milking technique" was not used or taught in New Zealand.
Chawdhry also argued he had no specific training on STI checks and was unaware of the inappropriateness of what he was doing, a defence which was not accepted by the judge.
On some occasions, the patients were not even visiting for a genital check-up.
Following publicity around his criminal trial, two more victims came forward and Chawdhry pleaded guilty to charges relating to them.
His case was heard in Wellington yesterday in front of the Health Practitioners Disciplinary Tribunal. Chawdhry, who is now out of prison on parole, was not present and his lawyer did not appear to represent him.
According to the Professional Conduct Committee (PCC), Chawdhry has not practised medicine since the end of 2015 and does not hold an annual practising certificate.
Chawdhry continued to deny any sexual motivation to his offending despite the judge finding the offending was carried out with "sexualised intent".
The offences were "grave", the PCC said, and there could be no doubt it reflected on Chawdhry's fitness to practise medicine.
Prosecutor Jo Hughson said his conduct was "disgraceful".
Aggravating factors included the vulnerability of his victims - they were aged between 17 and 35 and there was a significant power imbalance, and Chawdhry took advantage of the victims' lack of medical knowledge.
Only one victim understood at the time what Chawdhry was doing was wrong.
Hughson said it was "concerning" Chawdhry continued to deny any sexual motivation behind the offending.
"In addition, multiple victims recalled sexualised comments from Dr Chawdhry."
Some now avoided seeking medical treatment and distrusted doctors or did not want to be touched.
The Tribunal cancelled Chawdhry's registration, censured him, ordered him to pay 30 per cent of the costs for the hearing, and ordered he undergo a sexual misconduct assessment test if he ever returned to practising medicine.