of section 440.13, Florida Statutes, controls. See Butler v. Bay Center/Chubb Ins. Co., 947 So.2d 570, 572 (Fla. 1st DCA 2006) (procedural changes apply without regard to the date of accident). Section 440.13(2)(f), Florida Statutes (2005), allows a claimant to make one change in his treating physician during the course of treatment for an accident. The carrier is to authorize an alternative physician who is not professionally affiliated with the prior treating physician. However, “[ujnder the 2005 version of the workers’ compensation law, the employer/carrier is no longer statutorily required to provide a claimant with the choice of three physicians.” Butler, 947 So.2d at 573. To be entitled to a change in physician, claimant must first avail himself of the treatment authorized. Id. (<HOLDING>). Here, claimant was not entitled to a onetime
recognizing physician assistant as agent of the supervising physician holding that a claimant establishes a prima facie case for compensable medical treatment where a qualified physician indicates treatment was necessary for a workrelated condition holding testimony about plaintiffs mental and physical state before treatment by physician was relevant holding the procedural right to request a onetime change of physician during the course of treatment does not attach until claimant actually begins treatment with the initially authorized physician holding that a claimants benefits were rightly suspended under what is now section 8434043 when the claimant did not return to the authorized physician for treatment