The doctor who was performing an unauthorized biopsy on Joan Rivers when she quit breathing was allegedly Manhattan throat specialist Dr. Gwen Korovin, a well respected doctor who often operates on celebrities, TMZ reports.
![(Photo: Twitter)](https://dailycaller.com/wp-content/uploads/2014/09/screenshot-2014-09-17-at-4.37.20-pm.jpg)
(Photo: Twitter)
Korovin, pictured above, was not even authorized to practice at Yorkville Endoscopy, the clinic Rivers visited for the routine procedure. She is also the doctor who reportedly took a selfie while in the operating room, before starting the biopsy on Rivers, who was under anesthesia. (RELATED: Joan Rivers’ Doctor Was Snapping Selfies In Operating Room)
Korovin has reportedly worked on Celine Dion, Brooke Shields, Julie Andrews, and John Mayer — among a slew of other celebrities. (RELATED: Joan Rivers’ Doctor Fired From Clinic)