Canada's healthcare system stands at a critical juncture. Despite investing billions in digitizing patient records over the past two decades, electronic health records (EHRs)—comprehensive digital versions of a patient's medical history including medications, diagnoses, test results, and care plans—remain stubbornly disconnected. This fragmentation creates silos of information across clinics, hospitals, provinces, and territories, forcing clinicians to rely on outdated methods like fax machines or patients' recollections. The result? Avoidable patient harms, skyrocketing costs, and stalled health system improvements. A landmark study published in the Canadian Medical Association Journal (CMAJ) on May 4, 2026, led by researchers from the University of Calgary, lays bare this crisis, urging immediate action for interoperable systems where data flows securely and seamlessly.

The study, titled "The current state of electronic health records across Canada: an environmental scan and interoperability maturity assessment," reveals a paradox: near-universal EHR adoption coexists with profound interoperability failures. Interoperability refers to the ability of different health information technology systems to securely exchange and use patient data without special effort. As patients move between family doctors, specialists, emergency rooms, and even provinces, vital information often fails to follow, leading to repeated tests, medication errors, and fragmented care coordination.

🔬 Unveiling the CMAJ Study: A Nationwide Environmental Scan

The CMAJ study, authored by Sunand Kannappan, Stephanie Hastings, Tyler Williamson, Braden Manns, and colleagues from institutions including the University of Calgary's Cumming School of Medicine, McGill University, and Canada Health Infoway, conducted an exhaustive two-year environmental scan. They interviewed 23 experts from government, health authorities, hospitals, and clinical leadership across all 10 provinces and three territories. Using a novel EHR interoperability maturity model—developed through literature review, expert consultation, and validation—the researchers rated jurisdictions on eight dimensions: four enablers (governance, legislation/standards, incentives/capacity-building, technical infrastructure) and four status areas (community EHRs, hospital EHRs, patient portals, system analytics).

Key revelation: No jurisdiction achieved 'advanced' status across all areas. Ratings ranged from basic (minimal functionality) to advanced (seamless integration), visualized in a heatmap that highlights uneven progress. Smaller jurisdictions like Prince Edward Island and some Atlantic provinces and territories scored higher in governance and incentives, while larger ones like British Columbia and Ontario lagged in technical integration. The model provides a Connected Care Scorecard, a practical tool for policymakers to track and benchmark improvements. Read the full CMAJ study here for detailed ratings and methodology.

Impressive Adoption, But Interoperability Lags Far Behind

Canada has made strides in EHR adoption. Physician use surged from 36% in 2009 to 95% in 2024, per Canada Health Infoway data. Community EHRs exceed 90% in every province, with hospitals at over 90% in most (around 80% in Quebec and Atlantic provinces). Central repositories capture labs, imaging, immunizations, and medications in most areas, but specialist notes and primary care documentation are scarce.

Yet, interoperability—the holy grail—remains elusive. Data exchange between primary care, specialists, and hospitals relies on fax or mail in every jurisdiction. Only Saskatchewan and Prince Edward Island report widespread direct electronic connections. Patient portals exist in many provinces but exclude key data like discharge summaries; usage hovers at 47% nationally, dipping to 18% in territories. System analytics for planning, like outbreak prediction, is 'basic' everywhere, starving public health efforts. This disconnect persists despite over $3 billion invested federally via Infoway since 2001.

A Tale of Provincial Patchwork

Canada's federal structure breeds diversity in EHR systems, but without harmonization, it fosters silos. Here's a snapshot:

British Columbia's ~40 clinic systems and varying hospital platforms exemplify fragmentation, while Prince Edward Island's single platforms shine. University of Calgary's summary details these disparities.

Patient Harms: The Human Cost of Disconnected Data

Fragmentation translates to real risks. Clinicians lack full histories, leading to duplicate tests (e.g., unnecessary imaging), medication discrepancies (prescribing conflicting drugs), and care gaps (missed allergies or recent diagnoses). Patients retell stories across visits, eroding trust and efficiency. In emergencies, absent specialist notes delays treatment.

While specific cases tied to EHR silos are underreported, broader data shows 1 in 18 hospital patients experience preventable harm, often from information gaps. A 2025 study found only 13.2% of Canadians access core records electronically. In BC, a patient moving from Vancouver ER to Burnaby clinic faces retesting; medication errors rise without synced allergy lists. University researchers emphasize: disconnected records compromise safety, echoing CIHI warnings on inefficiencies harming outcomes. CIHI's economic analysis underscores patient safety losses.

Photo by V B on Unsplash

Billions Down the Drain: The Economic Burden

Poor interoperability costs ~$9.5 billion yearly, per CIHI estimates—a 'floor' value from duplicated services ($2.4B via Infoway), pharma gaps ($3.8B), AI inefficiencies (5% admin costs), and slowed innovation. Taxpayers foot duplicative tests and admin burdens; provinces like Ontario spent $8B+ by 2016 with little interop gain. Full connectivity could unlock $10B+ in value, freeing clinicians for care and enabling AI-driven predictions.

Eight Surmountable Barriers Holding Back Progress

• Weak governance: No pan-Canadian oversight or accountability.
• Missing legislation/standards: Vendors unmandated to share data.
• Misaligned incentives: No rewards for exchange; fax cheaper short-term.
• Technical hurdles: Proprietary systems, high integration costs.
• Physician resistance: Low digital literacy, workflow disruptions.
• Privacy fears: Overcautious rules block access.
• Vendor data-blocking: Fees, interfaces hinder flow.
• Inconsistent data: Varied formats/notes challenge merging.

Legislative Momentum: Bill S-5 and Beyond

Federal Bill S-5, the Connected Care for Canadians Act (reintroduced February 2026), mandates vendor interoperability, bans data-blocking, and sets standards— a pivotal step. Provinces must align with governance, incentives, and infrastructure. Infoway's 2026 Projectathon tests pan-Canadian exchanges, signaling progress.

Voices from the Frontlines: Expert Perspectives

Dr. Braden Manns (UCalgary): "Patient health information is siloed... harming patients." Sunand Kannappan: "Clinicians lack the full picture." Tyler Williamson highlights analytics potential. Ewan Affleck (Conversation co-author): Urgent need for standards like Taiwan's. University-led research drives this agenda.

Universities' Pivotal Role in Health Informatics Innovation

Higher education anchors solutions. UCalgary's maturity model, McGill's contributions, and Ottawa's informatics expertise fuel maturity assessments and standards development. Programs in health informatics train the next generation, while research prototypes AI for EHRs. Faculty jobs in clinical research abound amid this push.

Photo by Fabián Vega on Unsplash

Outlook: Towards Seamless, Patient-Centered Care

With Bill S-5, Infoway efforts, and university innovation, Canada can achieve connected EHRs. Benefits: safer meds, fewer tests, empowered patients via portals, AI diagnostics, and data-driven planning. Leadership must prioritize interoperability to transform fragmented records into a unified asset, saving lives and billions.