Massachusetts Domestic Relations Procedure Rule 35: Physical and Mental Examination of Persons
(a) Order for Examination. When the mental or physical condition (including the blood group) of a party, or of a person in the custody or under the legal control of a party, is in controversy, the court in which the action is pending may order the party to submit to a physical or mental examination by a physician or to produce for examination the person in his custody or legal control. The order may be made only on motion for good cause shown and upon notice to the person to be examined and to all parties and shall specify the time, place, manner, conditions, and scope of the examination and the person or persons by whom it is to be made. Identical to Mass.R.Civ.P. 35(a)
(1) If requested by the party against whom an order is made under Rule 35(a) or the person examined, the party causing the examination to be made shall deliver to him a copy of a detailed written report of the examining physician setting out his findings, including results of all tests made, diagnoses and conclusions, together with like reports of all earlier examinations of the same condition. After delivery the party causing the examination shall be entitled upon request to receive from the party against whom the order is made a like report of any examination, previously or thereafter made, of the same condition, unless, in the case of a report of examination of a person not a party, the party shows that he is unable to obtain it. The court on motion may make an order against a party requiring delivery of a report on such terms as are just, and if a physician fails or refuses to make a report the court may exclude his testimony if offered at the trial.
(2) By requesting and obtaining a report of the examination so ordered or by taking the deposition of the examiner, the party examined waives any privilege he may have in that action or any other involving the same controversy, regarding the testimony of every other person who has examined or may thereafter examine him in respect of the same mental or physical condition; but he does not otherwise waive his right to object at the trial to the introduction into evidence of the report or any part thereof.
(3) This subdivision applies to examinations made by agreement of the parties, unless the agreement expressly provides otherwise. This subdivision does not preclude discovery of a report of an examining physician or the taking of a deposition of the physician in accordance with the provisions of any other rule.
Identical to Mass.R.Civ.P. 35(b)