Dear TAC: As a Palmer West grad, I am a "mixer" in that I may use additional P.T. in my practice. This does not rise to the licensed level of specialist, except as a D.C. who can utilize P.T. modalities. A specialized M.D., like a specialized D.C, trains for several additional years, and passes exams for proficiency beyond our doctoral studies. Most "mixers" only are trained in (this state-California) physical therapy modalities, as contrasted with "straights", who seem content to only see a patient in terms of here-and-now subluxations. Not wrong, just limited. And if a doctor is excellent at that, and nothing more, he or she is worth a lot to many patients. Specialists take on particular areas of interest and caring, usually. They help patients many other good doctors, whether D.C. or M.D.. are unable to help due to lack of expertise in that speĀcial area. Sincerely, Elizabeth Martin Horn, D.C.