42 CFR § 403.1110 - Evaluation of models.
(2) The changes in spending under the applicable titles by reason of the model.
(b) Information. Any State or other entity participating in the testing of a model under section 1115A of the Act must collect and report such information, including “protected health information” as that term is defined at 45 CFR 160.103, as the Secretary determines is necessary to monitor and evaluate such model. Such data must be produced to the Secretary at the time and in the form and manner specified by the Secretary.