Cerner Millennium

Reviewed: 31 May 2025

Millennium, a leading EHR system, provides real-time access to critical patient data and supports informed decision-making and coordinated care delivery across healthcare settings to enhance patient care. Integrate with Millennium to get real-time access to critical patient data.

Setup Type

Self-Service with Prerequisites - You can obtain credentials yourself through Oracle's Code Console, but the clinic must first have an account. If they don't have an account, manual credential requests through Oracle are required.

Required Credentials

To integrate with Cerner Millennium in production or using your own credentials in Leyr Sandbox, you'll need:

• Client ID
• Client Secret

Setup Guide

1. Login to your account at https://code-console.cerner.com/
2. Click the "Go to My Applications" button (https://code-console.cerner.com/console/apps)
3. Click the "+ New Application" button in the top right corner
4. In the window that appears, provide:
   • Application Name - according to your needs, e.g. "Leyr Integrations"
   • Application Type - select "System"
   • Intended User - select according to your needs
   • Intended Purpose - select according to your needs
   • Leave all other fields as they are
5. Click "Next" in the bottom navigation menu
6. In the next window, select:
   • Product Family: "Millennium"
   • Select Products: Both "Oracle Health FHIR APIs for Millennium: FHIR DSTU 2, All" and "Oracle Health FHIR APIs for Millennium: FHIR R4, All"
7. Click "Next" in the bottom navigation menu
8. In the next window, select the following checkboxes:
   • Appointment - both "Read" and "Write" (check "Select All")
   • Location - "Read"
   • Patient - both "Read" and "Write" (check "Select All")
   • Practitioner - "Read"
   • Procedure - "Read"
   • Schedule - "Read"
   • Slot - "Read"
   • Optional: If you need Medical Notes, also select "DocumentReference" - "Read" and "Write" (check "Select All")
9. Click "Next" in the bottom navigation menu
10. Scroll to the bottom and check the "I agree to the terms of use" checkbox
11. Click "Submit" in the bottom navigation menu
12. You should see a "Success. You successfully registered your application." message and be redirected to the "My Applications" page
13. Click on the application you just created
14. You'll see your Client ID and a link to your Client Secret (shown on a separate page) - these are the credentials you need!

You're now ready to test and launch your integration with Cerner Millennium via Leyr. Check our API specification for implementation details.