Robert Singer, MD

Unfortunately there is no law in any state that restricts the scope of practice strictly to a physician's board certification.  While there are some "pedigree" laws that require physicians disclose board certification,  unfortunately few consumers understand or recognize the authenticity of board certification in the 28 member boards that are recognized by the American Board of Medical Specialities (ABMS) and the countless self-proclaimed and unrecognized board that provide nebulous credentials. 

In the state of California for example, oral surgeons have long lobbied for legislation that would allow them the hospital privileges to perform procedures that are not formally including in oral surgery training programs, such as breast reduction or augmentation.  This is a detriment to public safety and health, as no one would allow an internist, for example, privileges to perform neurosurgery.

The most important steps any consumer can take include:  Verifying a physician's board certification by an ABMS member board; verify licensure and good standing with the state medical board or local courthouse;  verify membership in good standing with specific ABMS specialty professional societies such as ASAPS and ASPS for plastic surgeons; verify hospital privileges for the procedure the surgeon recommends he/she will perform on you; ask to see photographs of the physician's own work for the procedure you plan to undergo; specifically ask about accreditation of surgical facilities and the qualification of anesthesia providers.  When in doubt, don't take the chance.