Nothing contained in this chapter shall limit the right of the employee to provide, at his or her own expense, a consulting physician or any attending physicians whom he or she desires. Any report prepared by consulting or attending physicians pursuant to this section shall not be the sole basis of an award of compensation. A qualified medical evaluator or authorized treating physician shall address any report procured pursuant to this section and shall indicate whether he or she agrees or disagrees with the findings or opinions stated in the report, and shall identify the bases for this opinion.