A Cambridge chiropractor lost his license for defying an order by the Minnesota Board of Chiropractic Medicine to cease direct patient care, according to a board order in April. David J. Schornstein, owner of North Metro Chiropractic Clinic, was given a stayed suspension in August 2011 for misusing prescription painkillers. He was allowed to run his business but not provide direct care, the suspension order stated. But according to the order, Schornstein provided care on 13 occasions, billed an insurance company using a false name and billed for services he hadn't provided, including about 57 massage sessions. While Schornstein agreed to the license revocation, he denied providing the care or billing the insurance company using a false name, the order said. Read the April, 2012 order here. Read the August, 2011 order here.