(A) No license shall be required under this chapter for establishment which is a hospital or health care facility licensed by the state nor for a medical clinic or the office of a duly licensed chiropractor, osteopath, physician or medical doctor or physical therapist. No license shall be required of a duly licensed barber or cosmetologist extending massage to the face, head or shoulders.
(B) No license shall be required under this section by any person duly licensed by the state under the provisions of the Iowa Code.
(C) No license shall be required under this section by trainers of any amateur, semi-professional or professional athlete or athletic team or for facilities used for such purposes.