Tung Sheng "David" Wu, 62, was sentenced to three months in jail for contempt for ignoring a court order to stop practising dentistry without a licence,but the B.C.'s College of Dental Surgeons had been unable to locate him.
A Canada-wide warrant was issued for his arrest in August.
Wu turned himself into police in Scarborough, Ont. Saturday, and has a bail hearing scheduled for Monday.
"He surprised us by turning himself in, there was no forewarning that he'd be coming in," said Toronto Police Staff Sgt. Gerry Heaney.
"Sometimes lawyers will contact and say, 'my client is turning themselves in, there's a warrant for their arrest.' He just appeared at our front counter and said I'm wanted by the police in British Columbia and I'm turning myself in based on the advice from legal counsel."
In May, the college and RCMP officers shut down one of Wu’s clinics, set up in a bedroom of his Burnaby home.
The raid found Wu was operating in dirty and disorganized conditions, and the college issued a public warning urging Wu's patients to be tested for hepatitis B, hepatitis C and human immunodeficiency virus (HIV).
Wu had been ordered by the court to stop practising dentistry without a licence back in 2003.