I hear this sort of thing every now and then and I'm always amazed. After all, in Nevada, lawyers don't sue doctors - doctors sue doctors.
Nevada law requires that every plaintiff obtain a medical review from a qualified specialist prior to filing a malpractice complaint. All malpractice complaints must be filed with an appropriate expert affidavit.
In the case at hand, a highly qualified well-credentialed cardiologist opined that the defendant cardiologist was negligent and should have taken corrective action. Our case would not have been filed but for the opinion of another cardiologist.
Medical malpractice lawsuits in Nevada would not exist but for doctors who testify against other doctors.