Optum incident
Resolved Notice: Medicare Eligibility - Received CMS errors for validate patient eligibility processing due a vendor processing issue
Optum experienced a major incident on August 9, 2026 affecting MedRx, lasting 2h 16m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Aug 09, 2026, 08:44 PM UTC
Medicare Eligibility is currently down with no ETA. The MedRx teams are continuing to monitor the situation. #INC51510582
- investigating Aug 09, 2026, 09:46 PM UTC
The Medicare HETS 270/271 system is currently unavailable, impacting eligibility transaction processing through TCP/IP and Web Services. CMS is aware of the issue and is actively working toward resolution. Further updates will be provided as additional information becomes available. #INC51510582
- resolved Aug 09, 2026, 11:01 PM UTC
The Medicare HETS 270/271 system has been restored, and eligibility transactions are processing normally via TCP/IP and Web Services. Service is now available, and the issue has been resolved. #INC51510582