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Welcome to the alpha version of the Horizon Interoperability Developer Portal. This version of the portal has very limited features.
More features enabling our APIs will be added in the near future.
Welcome to Horizon Interoperability
Enabling APIs to leverage access to a patient’s clinical and administrative data.
Data APIs available
APIs for interoperability comprised of USCDI clinical data, CARIN administrative data, Da Vinci Formulary Drug data and Da Vinci Provider Directory data
How Do I Start?
The APIs of Horizon Connected Interoperability Solution provide the basis for building healthcare applications, such as mobile, that deliver HL7® FHIR® data to members and providers on demand. Some example applications use cases could be to view test results, check on medications, and review recent office visits.
Our APIs allow access to clinical, administrative and formulary drug plan information about a patient, as well as provide detailed provider directory information. Applications will securely interact with this data on behalf of the patient in order to deliver patients real-time access to their healthcare data.
For a set of data sharing principles and best practices for healthcare applications, read the CARIN code of conduct.
To get started with the Developer Portal, read the Getting Started guide.
Key third party resources and links:
Patient Access API
Definition for the clinical data implementation guide
Definition for Drug Formulary implementation guide
Definition for administrative data implementation guide
Provider Directory API
Definition for provider directory implementation guide
APIs that will connect a patient to their administrative data such as claim, explanation of benefits, member and coverage information that supports the Carin Consumer Directed Payer Data Exchange implementation guide.
APIs that will connect a patient to their clinical data, such as lab/diagnostic results, medications and more that support the USCDI implementation guide.
APIs that will give detailed information about a payer’s network of physicians and facilities with the goal of connecting patients to care providers that supports the Da Vinci Payer Data Exchange Plan Net Directory implementation guide.
APIs that will allow a patient to explore their drug plan and understand drug tiers and cost sharing information that support the Da Vinci Payer Data Exchange US Drug Formulary implementation guide.
Example Endpoint Call
As an example, you can obtain member profile data based on tenant enrollment ID, subscriber ID and profile group by making an API endpoint call to
On the API page, you can test-execute this operation by clicking the “Try it” link and following the instructions. In this case, you’ll receive an example set of member profile data in the returned response.
"description": "Unique ID assigned."
"description": "The subscriber's ID."
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*HL7 Da Vinci Project: Da Vinci is a private sector initiative that addresses the needs of the Value Based Care Community by leveraging the HL7 FHIR platform.
**The CARIN alliance: https://www.carinalliance.com/about-us/
HL7® and FHIR® are the registered trademarks of Health Level Seven International and the use does not constitute endorsement by HL7. More information may be found [here].
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