Controversial Joan Rivers Doc Was Subpoenaed In John Ritter Wrongful Death Legal Battle

She has had to deny that she took a selfie with Joan Rivers while she was under anesthesia.

But now it seems that Dr. Gwen Korovin was connected to the wrongful death of another celebrity.

According to In Touch magazine the ear, nose and throat specialist was subpoenaed when the family of John Ritter sued doctors for negligence in treating the actor who died of an aortic dissection in 2003.

Korovin – whose patients have included Lady Gaga, Hugh Jackman and Celine Dion – was subpoenaed by one of the doctors involved in that case.

But, according to In Touch, the medic allegedly managed to avoid being served.

A source told the magazine: “She, or people close to her, refused to accept service of the subpoena.

“She claimed she never treated Ritter.”

It’s been a tough few weeks for Korovin who has yet to answer uncomfortable questions about what happened in the Manhattan clinic where Rivers went for a planned endoscopy on August 28.

As RadarOnline.com previously reported the doctor has vowed to clear her name.

A source close to her said: “She will absolutely cooperate with investigators from the New York Health Department and Medical Examiner’s Office.

“Dr. Korovin has nothing to hide…”