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CMS Blue Button 2.0

CMS Blue Button 2.0 Patient API

Beneficiary demographic and administrative data.

Documentation Provider Profile APIs.io OpenAPI GitHub

CMS Blue Button 2.0 Patient API is one of 5 APIs that CMS Blue Button 2.0 publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Patient. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

This API exposes 2 operations across 2 paths, and defines 2 schemas. It is described by OpenAPI 3.2.0, at version 2.0.

Requests are made against 2 base URLs: https://api.bluebutton.cms.gov/v2/fhir, https://sandbox.bluebutton.cms.gov/v2/fhir.

2 operations 2 paths 2 schemas 2 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
2.0
Base URL
https://api.bluebutton.cms.gov/v2/fhir
Authentication
OAuth 2.0
Contact
CMS Blue Button 2.0
Terms of Service
View terms
Resource Areas
1

Authentication & Security 1

CMS Blue Button 2.0 Patient API declares 1 security scheme for authenticating requests. It supports OAuth 2.0 (oauth2) using the authorizationCode flow, exposing 6 scopes. By default, every request must be authenticated.

  • oauth2 — OAuth 2.0 authorization-code flow with mandatory PKCE (S256 only). Beneficiaries log in with their Medicare.gov credentials and choose whether to share demogra…

Paths & Operations 2

Across 2 paths, the API surfaces 2 operations — 2 GET. Each is listed below with its method, path, parameters, and response codes.

Patient 2

Beneficiary demographic and administrative data.

GET
/Patient
Search the authorized beneficiary's Patient resource
searchPatient 5 params → 200401
GET
/Patient/{id}
Read the beneficiary's Patient resource by id
readPatient 1 param → 200401404

Schemas 2

The contract defines 2 schemas that model the data the API accepts and returns. The most detailed are Patient (6 properties), Bundle (5 properties). Each schema is shown below with its type and property counts.

Bundle
object
A FHIR R4 searchset Bundle wrapping matching resources.
5 properties
Patient
object
FHIR R4 Patient resource for the authorizing Medicare beneficiary.
6 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

cms-blue-button-patient-api-openapi.yml Raw ↑

Other APIs CMS Blue Button 2.0 publishes across the network.

CMS Blue Button 2.0 Coverage API
AE Profile APIs.io
CMS Blue Button 2.0 ExplanationOfBenefit API
AE Profile APIs.io
CMS Blue Button 2.0 Metadata API
AE Profile APIs.io
CMS Blue Button 2.0 UserInfo API
AE Profile APIs.io
#Patient
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API Details
ID
cms-blue-button:cms-blue-button-patient-api
Base URL
https://api.bluebutton.cms.gov/v2/fhir
Docs
https://bluebutton.cms.gov/api-documentation/calling-the-api/
Provider
CMS Blue Button 2.0
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