# Tag: DIOPS ANS

- [“Ownerless crisis” deepens customer dissatisfaction at Unimed in Rio](https://brazilstockguide.com/insights/unimed-rio-crisis-ans-ultimatum-healthcare-failures/) (2026-03-25): With more than 300,000 beneficiaries, persistent failures and worsening user perception, a problem inherited from Unimed-Rio enters a critical phase under regulatory pressure.