The 'Mistletoe' singer's manager Scooter Braun previously confirmed that Bieber would take a paternity test to remove any doubt that he fathered Yeater's 3-month-old son Tristyn.
Bieber completed the DNA test to establish a solid chain of custody under "very-controlled circumstances" at a New Jersey medical facility on Friday (November 18), a source told TMZ.
Reps for Bieber have not confirmed the website's report.
Confusion erupted over the status of Yeater's suit last week amid rumours that she had chosen to quietly dismiss legal proceedings against Bieber.
Yeater's lawyer Jeffery Leving later clarified that she was still pursuing a DNA test to definitely prove whether or not Bieber is Tristyn's dad.
The 20-year-old has claimed that she became pregnant after having sex with Bieber at an October 2010 concert.
> Justin Bieber 'baby mother' Mariah Yeater text messages surface
> Selena Gomez speaks on Justin Bieber paternity allegations - video
Watch Justin Bieber and his manager Scooter Braun discuss Mariah Yeater's allegations below: