As a foundational EHR service, the Provincial Client Registry supports patient identification in clinical viewers.

Includes patient demographics such as legal name, date of birth, gender and contact information as well as identifiers such as Ontario Health Card Number and medical record numbers, covering 98% of Ontarians.

Includes patient identifiers for 86% of Ontario hospitals and 100% of community care Local Health Integration Networks (LHINs).

Supports multiple health care interface standards to query (e.g. HL7 FHIR, V3, V2) and update (e.g. HL7 V3, V2) the registry.

Enables fast and efficient searches by patient demographics and/or identifiers.


  • Enables the creation of an integrated longitudinal EHR based on linked patient identifiers
  • Facilitates the sharing of clinical information by establishing a common patient identity across all points of service
  • Improves patient safety by reducing errors associated with patient misidentification
  • Supports identification and remediation of source data quality issues impacting patient care (e.g. duplicates, overlays)
  • Provides access to current provincial patient demographic information
  • Reduces time spent manually updating patient demographic information within local client registries

Access Channels

Authorized health care providers access PCR via clinical viewers to support retrieval of their patient’s EHR:


Authorized health care providers in South West Ontario can access PCR via ClinicalConnect™.

ConnectingOntario ClinicalViewer

Authorized health care providers in the Greater Toronto Area and Northern and Eastern Region can access PCR via ConnectingOntario ClinicalViewer.

eHealth Portal

Authorized health care providers who may not have access to other viewers, can access PCR via eHealth Portal.

Hospital Information System (HIS)

Authorized health care providers can access PCR directly via their hospital information system (HIS).

Technical Prerequisites

  • Security Assertion Markup Language (SAML); standard for exchanging authentication and authorization data between the adopter and eHealth Ontario
  • Public Key Infrastructure (PKI) Certificates; enables mutual authentication between the adopter and eHealth Ontario and secure transfer of data via supporting protocols

Non-Technical Prerequisites

  • PCR onboarding (requirements, technical design, and conformance testing)
  • Legal agreements
  • Privacy and security assessments

Ready to Get Started?

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