Not really. The California Medical Board is not a court and they cannot hold you in contempt for failing to appear and answer their questions. They could ask a court of competent jurisdicion to issue a subpeona ordering you to appear as a material witness ... but you could show up and then take the Fifth Amendment and refuse to answer their questions for fear of self-incrimination. Since they have no power over you, they cannot offer you immunity from prosecution. What you say is a matter of public record and could be used against you in a court of law. They have no power over private citizens to hold them in contempt. So you don't have to go see them unless a court compels your appearance. They would also have to pay for your travel expenses and a per diem if they ask you to travel to appear. They still have to pay your expenses if you appear and refuse to answer any questions.

Trampy