Kudos to you for asking who specifically performs a cosmetic procedure -- you are being a proactive patient. The company that makes CoolSculpting, Zeltiq, provides practices with extensive training as part of a certification process that ensures consistency. CoolSculpting University is a comprehensive, 2-day program that includes intensive, one-on-one training. CoolSculpting is typically offered by plastic surgery and dermatology practices, where trained, qualified members of the medical staff may perform the procedure. It is safe for physician assistants, nurses, aestheticians, and others to perform the procedure if they are certified, but it is wise to also be sure that a physician is on hand.