“Allied health” is a label used to describe part of the health workforce generally distinct from physicians, dentists, nurses, or pharmacists. However, the field lacks a single definition, and many disagree on which professions should be included under that rubric. Apart from challenges in developing an informative taxonomy, many allied health professions possess skill sets that may overlap with those of other professions. In addition, states have enacted scope-of-practice laws that may prevent allied health professionals from applying their skills in patient care. This article discusses how certain allied health professions are affected by varying scope-of-practice regulations.