The impartial medical examiner, so agreed upon or appointed, shall examine the employee and make a report at least one week prior to the beginning of the hearing, which shall be sent to each party. No hearing shall be commenced sooner than one week after such report has been received by the parties. The report of the impartial medical examiner shall, where feasible, contain a determination of the following: (i) whether or not a disability exists, (ii) whether or not any such disability is total or partial and permanent or temporary in nature, and (iii) whether or not within a reasonable degree of medical certainty any such disability has as its major or predominant contributing cause a personal injury arising out of and in the course of the employee's employment. Such report shall also indicate the examiner's opinion as to whether or not a medical end result has been reached and what permanent impairments or losses of function have been discovered, if any. Such impartial physician's report shall constitute prima facie evidence of the matters contained therein.
Failure of an employee to report to an impartial medical examiner agreed upon or appointed under this section or under section eight, after due notice and without cause, and failure to submit to such examiner all relevant medical records, medical reports, medical histories, and any other relevant information requested without good reason, shall constitute sufficient cause for suspension of benefits pursuant to section forty-five. The report of the impartial medical examiner shall be admitted into evidence at the hearing. Either party shall have the right to engage the impartial medical examiner to be deposed for purposes of cross examination. Notwithstanding any general or special law to the contrary, no additional medical reports or depositions of any physicians shall be allowed by right to any party; provided, however, that the administrative judge may, on his own initiative or upon a motion by a party, authorize the submission of additional medical testimony when such judge finds that said testimony is required due to the complexity of the medical issues involved or the inadequacy of the report submitted by the impartial medical examiner. The fact that the impartial examiner has not treated the employee shall not constitute sufficient reason for finding any report of an impartial medical examiner inadequate.
Mass. Gen. Laws ch. 152, § 11A