5 /5 john burns: In my professional opinion, Attorney Mark Sieron is one of the best lawyers I have had to deal with over many years of peer review and expert witness healthcare representation. In his field of representation, he represented he with his expertise, candor, and respect for my concerns. Absolutely excellent advice with a favorable outcome. He was truthful and fair to me which I sincerely appreciated given my circumstances. I would highly recommend Attorney Sieron to anyone needing his services without hesitation. Dr Burns