(1) In order to promote cost containment of medical care provided for in 39-71-704, development of preferred provider organizations by insurers is encouraged. Insurers may establish arrangements with suppliers of soft and durable medical goods and health care providers in addition to or in conjunction with managed care organizations. Workers' compensation insurers may contract with other entities to use the other entities' preferred provider organizations. After the date that an injured worker is given an individual written notice by the insurer of a preferred provider, the insurer is not liable for charges from nonpreferred providers.
(2) Posting of preferred provider requirements in the workplace on bulletin boards, in personnel policies, in company manuals, or by other general or broadcast means does not constitute individual written notice. To constitute individual written notice under this section, information regarding referral to preferred providers must be provided to the worker in written form by mail or in person after the date of injury.