Is the following information gathered from "Law & Order" accurate about a little-known statute that it's very important to know when suing a doctor for malpractice?

Season 3, episode 19. To sum up:

Along with the complaint, an attorney must sign a certificate of merit saying that after consulting with another doctor, he reasonably believes the case has merit. And if he can’t find another doctor to agree, he signs a certificate saying so. But think about it. How many PI attorneys (personal injury) do you know who would set foot in a courtroom without a backup? In other words, you can’t sue a doctor unless another doctor says he made a mistake. So enough birds flat together, nobody goes to court.