RT Journal A1 Levinson W, Holmboe E T1 Maintenance of certification in internal medicine—realities: In an “uninvited commentary” to the levinson and holmboe article—reply JF Archives of Internal Medicine JO Archives of Internal Medicine YR 2011 FD September 12 VO 171 IS 16 SP 1507 OP 1508 DO 10.1001/archinternmed.2011.387 UL http://dx.doi.org/10.1001/archinternmed.2011.387 AB Unlike licensure, physicians can (and many do) practice without board certification. The hallmark of Certification and Maintenance of Certification (MOC) is that it is a physician-driven and a voluntary, self-regulatory process to help the public know that physicians have met a standard of competence in their chosen field of practice.