Former doctor Michael Shine was heckled heckled outside a court after he was accused of indecently assaulting 16 young men over a 20-year period.
Shine, 80, was charged with 25 separate counts of indecent assault between the mid-1960s and 1980s.
Dublin District Court heard Shine, of Wellington Road in Dublin 4, was arrested outside the Criminal Courts of Justice.
Detective Sergeant Nicholas Kelly said he cautioned and charged Shine.
The ex-consultant, who worked at Our Lady of Lourdes Hospital in Drogheda at the time of the alleged offences, replied “not guilty” to every charge, adding that he was not in the country for one of them.
Judge Cormac Dunne granted the defendant bail on his own bond of 5,000 euro.
He will reappear before the court on October 3 when the book of evidence will be served.
He must notify a senior investigating officer if he intends to leave the country or change address.
Dressed in a smart grey suit, beige trench coat and matching cap, Shine was heckled and had abuse shouted at him by a youth as he left the building with his solicitor.
Shine had previously claimed to have suffered a stroke during a civil case that was taken against the health service for acts that he was alleged to have committed.
Last month more than 100 former patients who claimed they were sexually abused by Shine have agreed to a settlement believed to exceed €8m.
The ex-consultant was previously acquitted in court of indecent assault on teenage boys while working at Our Lady of Lourdes Hospital in Drogheda. He was later struck off the medical register for professional misconduct. He denies all allegations of abuse.