ExecJetCA, I will second that notion.
Myself and a few others have, upon recommendation of some well known aviation experts, sought out and utilized Dr. Chien's services.
His handling of my SI saved me a ton of money.
My previous AME only wanted me to take a useless test my insurance wouldn't pay for. He wasn't alone. I believed in Dr Chien, and still do. Will see him in about 2 weeks.
No worries the FAA will audit him. Possibly one day, Dr Chine will take the place of one of the big wigs at Cami....maybe?
PS, I get no special deals for mentioning his name.