https://insurance-accident-claims.co.uk/nationwide Using the Nationwide Insurance Claim Number is simple and efficient. When you call, you'll be connected to a representative who will guide you through the initial steps of filing a claim. Here's what you need to have ready when calling: Your Policy Information: Keep your Nationwide policy number handy when you call. This helps the representative locate your account quickly and begin processing your claim. Details of the Incident: Be prepared to provide a clear description of the accident, damage, or theft. This includes the date, time, and location of the incident, as well as the names and contact information of any other drivers or witnesses involved.