Iowa Code § 147.2: License required.

1. A person shall not engage in the practice of medicine and surgery, podiatry, osteopathic medicine and surgery, genetic counseling, psychology, chiropractic, physical therapy, physical therapist assisting, nursing, dentistry, dental hygiene, dental assisting, optometry, speech pathology, audiology, occupational therapy, occupational therapy assisting, orthotics, prosthetics, pedorthics, respiratory care, pharmacy, cosmetology arts and sciences, barbering, social work, dietetics, applied behavior analysis, marital and family therapy or mental health counseling, massage therapy, mortuary science, polysomnography, athletic training, acupuncture, nursing home administration, or sign language interpreting or transliterating, or shall not practice as a physician assistant or a hearing aid specialist, unless the person has obtained a license for that purpose from the board for the profession.

2. For purposes of this section, a person who is licensed in another state and recognized for licensure in this state pursuant to the nurse licensure compact contained in section 152E.1 or pursuant to the advanced practice registered nurse compact contained in section 152E.3 shall be considered to have obtained a license to practice nursing.