Patient Access API

Opala’s Developer Portal is where you can begin using Opala’s Patient Access API. This API enables you to access medical record (EMR) data for patients/members.

Opala’s Patient Access API enables third-party app developers to create applications that can be used by patients and healthcare organizations to access meaningful medical data.

  • The Opala API follows the SMART App Launch Framework for the HL7 FHIR Release 4 specification.
  • The Opala API supports HL7 FHIR, DaVinci (PDex), and CARIN for Blue Button®.

Opala’s API provides a robust Master Patient Index, OAuth 2.0 security, a cloud-based data repository, and access to FHIR-based resources.

Payer-to-Payer Data Exchange

This feature enables a member to initiate the transfer of healthcare information from a previous payer to their current payer. The member enters their information on Opala's white-labeled Health Data Transfer page, then logs into their account with the previous payer. For a payer's data to be available for members to transfer, the payer must be registered with Opala. If a payer is not registered, the member can request registration from this page.

Provider Directory

The Provider Directory is a publicly accessible API that does not require any registration or authorization to access. It conforms to the HL7 FHIR Da Vinci PDex Plan Net IG.

This is the base URL of the Provider Directory FHIR server:

Access the API Documentation


If you have any questions, contact us at (206) 902-3380 or

Getting Started

Opala assumes that any developer working with the Patient Access API is familiar with the HL7 FHIR Release 4 specification. If a developer is not familiar with FHIR Release 4, or needs to look up something pertaining to a resource, each topic in the documentation set for the Opala API contains links to the relevant sections of the FHIR specification.

If you are ready to begin working with the Patient Access API, you must:

1. Create an account with Opala. Information Popup

2. Register one or more applications. Information Popup

Create Opala Account & Register Application