The East of England Ambulance Trust, which is facing allegations of patient deaths due to delays, will be the subject of a "risk summit".
Health Minister Steve Barclay told the Commons that claims against the Trust have been raised with senior NHS officials, including NHS England chief executive Simon Stevens, and the Care Quality Commission (CQC).
He said NHS England and NHS Improvement, with the CQC in attendance, will meet in the coming days to discuss and review information about the concerns.
Labour's Clive Lewis (Norwich South) last week told the Commons of allegations that 20 people died due to ambulances arriving late over a 12-day period where an ambulance service had failed to move into its highest state of emergency. He said a whistleblower brought the claims to him.
Speaking during a Commons debate, Liberal Democrat former health minister Norman Lamb (North Norfolk) encouraged Mr Barclay to reiterate that ambulance trust managers should allow staff to speak out when they have "genuine and legitimate" concerns.
Mr Barclay supported such a remark and later referred to the East of England Ambulance Service Trust.