Questão jurídica principal
Whether the insured person was obliged to undergo the ordered medical assessment.
Decisão extraída
Yes. The assessment was reasonable and the refusal was unjustified; objections to the expert's competence were substantive, not grounds for recusal at this stage.
Fundamentação extraída
The administration had discretion to choose the means of medical fact-finding. No entitlement existed to an assessment abroad or by an expert of one's own choice, and the warning/deadline procedure had been properly carried out.