Updated Date
Published Date

Information regarding:

  • Previous API publications
  • Upcoming releases
  • Modifications to already published APIs

Dates and information subject to change.

Please visit this page regularly for updates. 

 

Environment Notes

Date: 5/5/2021

Release information: Initial Release of the Provider Directory APIs.

This includes:

  • Endpoint
  • Healthcare Service
  • InsurancePlan
  • Location
  • Organization
  • OrganizationAffiliation
  • Practitioner
  • PractitionerRole

 

Sandbox

Date: 5/28/2021

Release information: Initial Release of the Patient Access APIs.

This includes:

  • CarePlan
  • CareTeam
  • Claim
  • Condition
  • Coverage
  • CoveragePlan
  • ExplanationOfBenefit
  • FormularyDrug
  • Immunization
  • Location
  • Medication
  • MedicationDispense
  • Observation
  • Organization
  • Patient
  • Practitioner
  • PractitionerRole
  • Procedure
  • RelatedPerson

 

Production Environment Notes

Date: 01/30/2024

Release information: Updates to FHIR resources and extensions effective 2/1/2024

Location Resource

Healthcare Service Resource

Practitioner Role Resource

Patient Resource

ExplanationOfBenefit Resource

 

Date: 11/3/2021

Release information: Patient Access APIs and Provider Directory APIs.

Provider Directory API:

  • HealthcareService
  • InsurancePlan
  • Location
  • Network
  • Organization
  • OrganizationAffiliation
  • Practitioner
  • PractitionerRole
  • Endpoint

Patient Access API:

  • Patient
  • Coverage
  • CarePlan
  • CareTeam
  • Location
  • Condition
  • Organization
  • Practitioner
  • PractitionerRole
  • ExplanationOfBenefit
  • Immunization
  • Observation
  • Procedure
  • MedicationDispense

  • FormularyDrug
  • CoveragePlan
  • RelatedPerson

Note: Provenance will not be an API, but will be supported across supported profiles. Please see API documentation for details.

Note: CoveragePlan data not currently available for Member view.

 

New Configuration: SSL Certificate Update for Geisinger API Endpoints.

Date: 11/18/2025

SSL certificate for api.geisinger.org will be updated from an Entrust/SSL.com-issued certificate to a Sectigo CA-issued certificate.  

Please ensure new Sectigo root and intermediate certificates are installed in your certificate stores before November 18 if they are not already present.

If you have any questions or encounter issues, please contact through email.


Upcoming Change: US Core Version upgrade to 6.1.0

Beginning January 1st 2026, IG version for supported US Core Resources will be upgraded from 3.1.1 to 6.1.0. Supported US Core Resources remain the same. As per US Core 6.1.0 Structure definition, required data elements for existing resources will be added/updated. Please refer our API Catalog and HL7 US Core 6.1.0 IG for more details.