Iowa Code § 148F.7

A licensed orthotist, prosthetist, or pedorthist may provide care or services only if the care or services are provided pursuant to an order from a licensed physician, a licensed podiatric physician, an advanced registered nurse practitioner who has a written collaborative agreement with a collaborating physician or podiatric physician that specifically authorizes ordering the services of an orthotist, prosthetist, or pedorthist, an advanced registered nurse practitioner who practices in a hospital or ambulatory surgical treatment center and possesses clinical privileges to order services of an orthotist, prosthetist, or pedorthist, or a physician assistant who has been delegated the authority to order the services of an orthotist, prosthetist, or pedorthist by the assistant’s supervising physician. A licensed podiatric physician or an advanced registered nurse practitioner collaborating with a podiatric physician may only order care or services concerning the foot from a licensed pedorthist or orthotist.