Does a med spa in Utah need a medical director?

Short answer
The captured provisions do not settle whether a medical director is required. For nonablative cosmetic medical procedures except hair removal, §58-1-506(3) requires a supervisor with an unrestricted medical or advanced practice nursing license.

Utah separates hair removal from other nonablative cosmetic medical procedures. For nonablative cosmetic medical procedures other than hair removal, § 58-1-506(3) requires the supervisor to hold an unrestricted medical or advanced practice nursing license. The supervisor must personally perform the procedure or authorize general cosmetic medical procedure supervision for a registered nurse or master esthetician, Chapter 70a supervision for a physician assistant, or direct cosmetic medical procedure supervision for an esthetician or practical nurse. A delegate must have appropriate training, an unrestricted license, act within the licensed scope and meet the competence requirements referenced in § 58-1-506(2)(f)(iii). The delegation-group definitions are distinct from these other-than-hair-removal procedure and actor requirements; they do not by themselves grant permission for every nonablative cosmetic medical procedure. GENERAL cosmetic medical procedure supervision requires prior authorization for the patient and supervisee, timely and appropriate in-person availability to evaluate and initiate care for a suspected adverse reaction or complication, and location within 60 minutes or 60 miles of the facility. A medical assistant under the indirect supervision of a physician MAY NOT diagnose, establish a treatment plan, or inject a medication or substance — including a neurotoxin or filler — for cosmetic purposes. The nursing rules define delegation as transferring authority to another nurse, or to an unlicensed individual only a task that does not require a nursing assessment.