Carequality identity and organization structure

Last updated: Jun 5, 2026
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The Carequality Interoperability Framework uses object identifiers (OIDs) to designate unique organizations and records belonging to Carequality participants. An OID is a globally unique identifier defined by the International Organization for Standardization (ISO).

Key takeaways
  • Carequality uses object Identifiers (OIDs) to uniquely identify organizations and records.
  • Redox provides three OID types for you: organization, patient, and document.
  • Your organization is part of the main Redox gateway OID.
  • You might need to create multiple child organizations (using the partOf field) if you have multiple MPIs or physical locations.

Carequality OIDs

We provide three OID types you must use within Carequality:

OID type

Description

OID structure

Organization

Corresponds to your organization on Carequality.

2.16.840.1.113883.3.6147.458.xxxxx.x.x.1.1

Patient

Corresponds one-to-one with your Master Patient Indexes (MPIs). We create the first one for you. If you have multiple MPIs, we recommend you create a patient OID for each MPI in your system.

2.16.840.1.113883.3.6147.458.xxxxx.x.x.2.1

Document

Corresponds one-to-one with each document you exchange over Carequality. Each document must have its own unique OID, which can either be a Redox-generated OID followed by your ID (e.g., …3.1^12345) or a version 4 UUID. Learn more about version 4 UUIDs.

2.16.840.1.113883.3.6147.458.xxxxx.x.x.3.1

If you believe you need additional OIDs, talk to a Redoxer for options and pricing.

Your organization OID

If you’re using Network Onramps, your organization is part of the Redox gateway OID, which is typically based on this OID: 2.16.840.1.113883.3.6147.458.2.

Using an existing OID

Network Onramps pricing requires that you use the Redox-generated OID. If you would rather use an existing OID, talk to your Account Manager to discuss needs and get pricing information.

If you’re responding to Carequality on your own—or if you have a valid exception to mutual exchange—your OID is different: 2.16.840.1.113883.3.6147.458.3.

Multiple Carequality organizations

There should be a one-to-one relationship between a parent organization and each patient census setup. The parent organization record should point to the Redox gateway: 2.16.840.1.113883.3.6147.458.2.

You might need to create multiple organization records under one parent organization if you meet one of the following criteria:

  • You have multiple brick-and-mortar locations where you provide services to patients.
  • You work with multiple MPIs. For example, you provide services on behalf of a provider who has their own MPI.
  • You want to list your organization in multiple locations to make your patients more discoverable to other Carequality participants.

We recommend defining a hierarchy for your organization by using the partOf field in Organization.New data model to create child organizations.

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