coach outlet stores report,Yusuf Sonmez was arrested in Istanbul after he was charged along with eight others by EU prosecutors in Kosovo late last year.
Charges against them include human organ trafficking and the unlawful exercise of medical activities.
Dr Sonmez is said to have previously denied organ trafficking.
The EU prosecutor in charge of the case, Jonathan Ratel, described him as a "key surgical participant" in operations performed at a private clinic on the outskirts of the Kosovan capital, Pristina.
coach shoesThe Turkish judge has less than two weeks to decide if the case against him will move to a trial, the Associated Press news agency reports from Istanbul.
A number of other suspects in the Medicus case were arrested earlier in Kosovo. All pleaded not guilty.
EU justice officials in the breakaway Serbian region, which declared independence in 2008, are expected to decide later this month whether to confirm the indictments and bring the suspects to trial, lawyer Bajram Tmava told AFP news agency.