This is normal when you are with the same company but at a different location. This is also seen when at some point during the tax year an employer's company structure changes which could also change their EIN as well.
It sounds like you will need to reach out to your companies HR or Payroll Department to ensure you have the correct amounts listed. They will also verify the EIN to make sure it's not a typo and guide you to what amount each box on your W-2s should have.
