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cms-ab2d-api

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10/1/25

AB2D government shutdown status

As of October 1, 2025, AB2D is impacted by the government's lapse in appropriations. The

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AB2D government shutdown status

As of October 1, 2025, AB2D is impacted by the government's lapse in appropriations. The

10/1/25

8/27/25

Scheduled Maintenance on August 27th

Hello AB2D Users, The scheduled maintenance has successfully completed and service is fully restored.

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Scheduled Maintenance on August 27th

Hello AB2D Users, The scheduled maintenance has successfully completed and service is fully restored.

8/27/25

8/26/25

Upcoming API Token Timeout Update - Effective August 29, 2025

Dear AB2D API User, To remain in compliance with the updated NIST Digital Guideline Standards (See

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Upcoming API Token Timeout Update - Effective August 29, 2025

Dear AB2D API User, To remain in compliance with the updated NIST Digital Guideline Standards (See

8/26/25

8/14/25

AB2D API Unstable

Hello AB2D API Users, We are happy to report that the issue has been resolved. Services have been

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AB2D API Unstable

Hello AB2D API Users, We are happy to report that the issue has been resolved. Services have been

8/14/25

8/13/25

AB2D Upcoming Planned Maintenance Notification

We are pleased to inform you that maintenance on the AB2D API has been completed. The system is now

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AB2D Upcoming Planned Maintenance Notification

We are pleased to inform you that maintenance on the AB2D API has been completed. The system is now

8/13/25

7/17/25

AB2D API Planned Maintenance

We are pleased to inform you that maintenance on the AB2D API has been completed. The system is now

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AB2D API Planned Maintenance

We are pleased to inform you that maintenance on the AB2D API has been completed. The system is now

7/17/25

7/15/25

AB2D Sandbox API Planned Maintenance

Dear AB2D Sandbox API User, The AB2D Sandbox API will be undergoing scheduled system maintenance

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AB2D Sandbox API Planned Maintenance

Dear AB2D Sandbox API User, The AB2D Sandbox API will be undergoing scheduled system maintenance

7/15/25

6/17/25

AB2D API is available

We are pleased to inform you that maintenance on the AB2D API has been completed. The system is now

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AB2D API is available

We are pleased to inform you that maintenance on the AB2D API has been completed. The system is now

6/17/25

6/17/25

AB2D API Under Maintenance - Do not attempt access

Dear User, The AB2D API is undergoing planned maintenance today from 12:00 PM to 4:00 PM ET. During

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AB2D API Under Maintenance - Do not attempt access

Dear User, The AB2D API is undergoing planned maintenance today from 12:00 PM to 4:00 PM ET. During

6/17/25

6/13/25

AB2D API Planned Maintenance

Dear AB2D API User, We are writing to inform you that we have updated our scheduled system

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AB2D API Planned Maintenance

Dear AB2D API User, We are writing to inform you that we have updated our scheduled system

6/13/25

4/23/25

Introducing CMS’ new AB2D API website

Get easier access to AB2D documentation, developer tools, and API requirements. Based on feedback and

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Introducing CMS’ new AB2D API website

Get easier access to AB2D documentation, developer tools, and API requirements. Based on feedback and

4/23/25

3/12/25

The AB2D team has resolved a degradation in service

Hello! The AB2D team has resolved the service disruption noted yesterday (3/11/25). We apologize for

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The AB2D team has resolved a degradation in service

Hello! The AB2D team has resolved the service disruption noted yesterday (3/11/25). We apologize for

3/12/25

3/11/25

The AB2D team has identified a degradation in service

Hello AB2D Users, We've identified a service disruption that began this morning, March 11th, 2025

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The AB2D team has identified a degradation in service

Hello AB2D Users, We've identified a service disruption that began this morning, March 11th, 2025

3/11/25

11/13/24

Scheduled Maintenance

Hi AB2D Community, The scheduled maintenance has successfully completed. Thank you for your continued

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Scheduled Maintenance

Hi AB2D Community, The scheduled maintenance has successfully completed. Thank you for your continued

11/13/24

10/22/24

Filter claims data with the new _until parameter

The AB2D team is excited to announce that we have just released _until, a new query parameter that

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Filter claims data with the new _until parameter

The AB2D team is excited to announce that we have just released _until, a new query parameter that

10/22/24

7/19/24

Potential degradation of service

Hi AB2D Users, Our partner team has deployed a fix and service is fully restored. A bug introduced on

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Potential degradation of service

Hi AB2D Users, Our partner team has deployed a fix and service is fully restored. A bug introduced on

7/19/24

7/2/24

Scheduled Maintenance

Hi AB2D Community, The scheduled maintenance has successfully completed. Thank you for your continued

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Scheduled Maintenance

Hi AB2D Community, The scheduled maintenance has successfully completed. Thank you for your continued

7/2/24

1/4/24

AB2D Maintenance Announcement

Hello AB2D Community, We've completed production maintenance and AB2D service has been fully

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AB2D Maintenance Announcement

Hello AB2D Community, We've completed production maintenance and AB2D service has been fully

1/4/24

7/14/23

AB2D API and the free CMS HL7 FHIR Connectathon

Join us July 18-20, 2023 at the virtual Center of Medicare and Medicaid Services HL7 FHIR

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AB2D API and the free CMS HL7 FHIR Connectathon

Join us July 18-20, 2023 at the virtual Center of Medicare and Medicaid Services HL7 FHIR

7/14/23

6/21/23

Free Bulk Claims API Workshop at HL7 FHIR Connectathon

Free Bulk Claims API Workshop at HL7 FHIR Connectathon Join us July 18-20, 2023 at the virtual HL7

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Free Bulk Claims API Workshop at HL7 FHIR Connectathon

Free Bulk Claims API Workshop at HL7 FHIR Connectathon Join us July 18-20, 2023 at the virtual HL7

6/21/23

2/16/23

AB2D Sandbox Environment down 2/15/2023

Hi AB2D Sandbox Users, AB2D's sandbox environment was down yesterday (2/15/22) from 3:50pm EST -

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AB2D Sandbox Environment down 2/15/2023

Hi AB2D Sandbox Users, AB2D's sandbox environment was down yesterday (2/15/22) from 3:50pm EST -

2/16/23

2/10/23

COMPLETE: AB2D Data Pause for 2-4 Weeks Starting 1/2/23

Hello AB2D Community, The AB2D Team would like to inform you that weekly data updates from our

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COMPLETE: AB2D Data Pause for 2-4 Weeks Starting 1/2/23

Hello AB2D Community, The AB2D Team would like to inform you that weekly data updates from our

2/10/23

1/11/23

COMPLETE: AB2D API: Planned Maintenance on January 11, 2023

The planned infrastructure upgrade in the production and sandbox environments is now complete and you

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COMPLETE: AB2D API: Planned Maintenance on January 11, 2023

The planned infrastructure upgrade in the production and sandbox environments is now complete and you

1/11/23

1/10/23

AB2D API: Planned Maintenance on January 11, 2023 13:00 ET

The AB2D API has planned maintenance to upgrade infrastructure for the production and public sandbox

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AB2D API: Planned Maintenance on January 11, 2023 13:00 ET

The AB2D API has planned maintenance to upgrade infrastructure for the production and public sandbox

1/10/23

12/30/22

AB2D API Data Pause for 2-4 Weeks Starting January 2, 2023

Hello AB2D API Community, Our upstream data partner's final updated data load for 2022 will be

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AB2D API Data Pause for 2-4 Weeks Starting January 2, 2023

Hello AB2D API Community, Our upstream data partner's final updated data load for 2022 will be

12/30/22

12/7/22

Delayed Weekly Data Load Complete

Hello AB2D Community, Weekly claims data updates were successfully loaded by our upstream data

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Delayed Weekly Data Load Complete

Hello AB2D Community, Weekly claims data updates were successfully loaded by our upstream data

12/7/22

12/6/22

Delayed Weekly Data Load

Hello AB2D Community, Weekly claims data updates were not successfully loaded by our upstream data

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Delayed Weekly Data Load

Hello AB2D Community, Weekly claims data updates were not successfully loaded by our upstream data

12/6/22

8/12/22

Weekly Data Upload - Complete

Hello AB2D Community, The weekly beneficiary and adjudicated claims data load for the week ending 7

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Weekly Data Upload - Complete

Hello AB2D Community, The weekly beneficiary and adjudicated claims data load for the week ending 7

8/12/22

8/9/22

Weekly Data Upload Delay 8.9.2022

Hi AB2D community, The weekly claims data load was not successfully uploaded this weekend. The root

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Weekly Data Upload Delay 8.9.2022

Hi AB2D community, The weekly claims data load was not successfully uploaded this weekend. The root

8/9/22

OS, cms-ab2d-api2

7/26/22

Medicare number and eligibility to services

Hi there, Could you provide us a little more information, including what company are you with and why

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Medicare number and eligibility to services

Hi there, Could you provide us a little more information, including what company are you with and why

7/26/22

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