Hours of Availability

Some inquiries of the Noridian Medicare Portal are dependent on the Medicare Claims Processing Systems to retrieve data. These systems are controlled by CMS and are not available 24/7 due to nightly and weekend cycles that need to be completed. The below table shows the availability of each function or inquiry. 

Availability (Central Time) Inquiry/Function

Claims Processing System Hours

  • Monday - Friday 6 a.m. - 8 p.m.
  • Saturday 7 a.m. - 3 p.m. 
  • No availability on Sunday
  • Claim Status (including Self Service Reopenings & Recoupment Requests)
  • Appeals Submission
  • Claim Specific Remittance Advices
  • Same or Similar (Option 1)
  • New User Registration

24/7
  • Eligibility
  • MBI Lookup Tool
  • ADR Status and Submission
  • CERT Inquiry
  • Appeals Status (Part B and DME Only) 
  • Financials (including 1099s & Overpayments)
  • Full Remittance Advices
  • Provider Enrollment
  • Prior Authorization Status and Submission
  • Same or Similar (Option 2)
  • Message Center