Iowa Code § 496C.8: Professional regulation.

No professional corporation shall be required to register with or to obtain any license, registration, certificate, or other legal authorization from any regulating board in order to practice a profession. Except as provided in this section, nothing in this chapter shall restrict or limit in any manner the authority or duties of any regulating board with respect to individuals practicing any profession which is within the jurisdiction of the regulating board, even if the individual is a shareholder, director, officer, employee, or agent of a professional corporation or foreign professional corporation and practices the individual’s profession through such corporation.