Most Common Hospital EMR Systems by Market Share

Electronic Medical Record (EMR) systems remain central to how hospitals and healthcare organizations document care, manage clinical workflows, and support operational reporting. While EMRs are often discussed alongside electronic health records (EHRs), EMRs focus on documenting care and managing medical records within an organization’s care setting, supporting day-to-day patient care activities.

Understanding which EMR systems are most widely used—and how market share is distributed—provides useful context for technology planning and benchmarking. In this article, we outline the most common hospital EMR systems by market share in the United States, examine overall adoption trends, and explore why these patterns matter for healthcare organizations.

What hospital EMR market share means

Hospital EMR market share typically reflects the percentage of hospitals using a given vendor’s system. These estimates are derived from hospital technology install databases and purchasing data that track platform deployment across acute care facilities.

Unlike revenue-based rankings, market share reflects where systems are actively used for clinical documentation, order management, and internal workflows. This perspective helps healthcare organizations understand how widely a platform is adopted among peer institutions and how concentrated the vendor landscape has become.

Hospital EMR systems by estimated market share

The hospital EMR market is concentrated among a small number of vendors, followed by a group of mid-market and niche platforms.

While the terms EMR and EHR are often used interchangeably in industry discussions, the market share data referenced in this article reflects inpatient hospital EHR installations.

Epic Systems

Employees: 10,000+¹

Revenue: $3.5B¹

Market share: 41.3 percent percent²

Epic Systems holds the largest share of hospital EMR installations in the United States, accounting for more than four in ten hospitals. Its adoption is especially strong among large health systems and academic medical centers, and recent data shows continued gains in hospital EMR adoption compared to other vendors.¹

Oracle Health (formerly Cerner)

Employees: 25,000+

Revenue: $5.9B

Market share: 21.8 percent²

Oracle Health represents the second-largest share of hospital EMR installations. The platform has longstanding use across enterprise health systems and public-sector hospitals, maintaining a substantial footprint in acute care environments.

MEDITECH

Employees: 3,400+

Revenue: $700M

Estimated market share: 11.9 percent²

Founded in 1969, MEDITECH is a software vendor in the health care informatics industry. The company provides integrated software solutions that meet the information needs of health care organizations worldwide. The organizations they serve include hospitals, ambulatory care centers, physicians' offices, long-term care and behavioral health facilities, and home health organizations.³

TruBridge (formerly CPSI)

Employees: 3,200+

Revenue: $347M

Market share: 4.8 percent²

Evident maintains a notable presence in smaller and rural hospitals. Adoption in this segment reflects demand for EMR platforms aligned with focused inpatient workflows and local operational requirements.

WellSky

Employees: 2,400+

Revenue: $661M

Market share: 3.1 percent²

WellSky’s EMR footprint spans hospital and hospital-adjacent environments, reflecting overlap between inpatient care and post-acute services such as rehabilitation and home health.

Medhost

Employees: 600+

Revenue: $126M

Market share: 2.5 percent²

Medhost EMR systems are primarily used by community- and regionally focused hospitals, with an emphasis on inpatient and emergency department documentation workflows.

Netsmart Technologies

Employees: 500+

Revenue: $31M

Market share: 2 percent²

Netsmart EMR systems are most commonly used in behavioral health and specialty inpatient facilities, where documentation requirements differ from general acute care.

Altera Digital Health

Employees: 2,800+

Revenue: $684M

Market share: 1.5 percent²

Altera Digital Health’s EMR systems, including Sunrise, are deployed in a smaller share of hospitals, often in specialty or select acute care environments.

Vista and other vendors

Estimated combined market share: 1 to 2 percent²

Legacy and niche EMR platforms, including Vista and other smaller systems, account for a small portion of hospital installations. These systems are often retained in government-affiliated or long-standing environments.²

How EMR adoption has shifted over time

Ten years ago, electronic health record adoption in U.S. hospitals hovered around 72 percent. According to the Office of the National Coordinator for Health Information Technology (ONC), adoption has since climbed to 96 percent, reflecting near-universal digital documentation in hospital settings.⁴

At the vendor level, market analyzes show increasing concentration among a small group of enterprise platforms. While a diverse mix of mid-tier and specialty vendors continues to serve specific segments, the majority of inpatient hospital installations are now concentrated among a few dominant systems.

This consolidation reflects broader trends in healthcare, including health system mergers, increasing documentation demands, interoperability requirements, and enterprise-wide workflow standardization.

Understanding EMR integration with clinical tools

In addition to primary documentation, many healthcare organizations connect clinical and patient engagement tools directly to their EMR systems. These integrations allow clinicians to incorporate activities such as educational content, home exercise programs, and other care pathways into their existing EMR workflows, reducing toggle time between systems and supporting clinical continuity.

Medbridge’s EMR integration resources highlight ways organizations can link digital care tools and documentation directly within a clinician’s workflow. For example:

• Single sign-on (SSO) reduces log in complexity and allows clinicians to access interactive content without switching platforms.

• Building and assigning care programs directly in the EMR supports visibility into patient engagement.

• EMR integration can help streamline workflows, reduce manual documentation, and support visibility into adherence and clinical activity in a single environment.³¹

These kinds of connections are often built on HIPAA-compliant, secure interoperability frameworks that support the exchange of protected health information without compromising privacy.

Because large hospital EMR systems are widely adopted, integration with external care tools—frameworks for assigning or tracking patient activities—can contribute to smoother documentation workflows and reduce administrative overhead for clinicians.

Considerations for EMR integration

Integrating external clinical tools with an EMR system typically requires coordination across clinical, IT, and operations teams. Successful integration is not only a technical project but also a workflow and governance decision that affects documentation practices, compliance, and daily clinician experience.

• Secure interface configuration and validation: Interfaces must be configured using secure interoperability standards and thoroughly tested to ensure protected health information is transmitted accurately and consistently.

• Workflow alignment to support accurate documentation: Integration should reduce friction—not add it. Organizations should evaluate how embedded tools fit into existing documentation patterns, order workflows, and clinical review processes.

• User access and identity management: Single sign-on (SSO), role-based permissions, and authentication protocols must be configured to support secure, efficient access without creating unnecessary barriers for clinicians.

• Data governance and compliance oversight: Clear ownership of data, documentation standards, and audit processes helps ensure that integrated systems meet regulatory and organizational requirements.

• Ongoing monitoring and performance validation: Interfaces should be monitored to confirm reliable data exchange, minimize downtime, and quickly identify discrepancies that could affect patient records or reporting accuracy.

While integration requires planning, cross-functional collaboration, and technical resources, thoughtful implementation can support cleaner documentation practices, reduce duplicate work, and improve workflow efficiency across care teams.

What this means for healthcare organizations

Hospital EMR market share data reflects a concentrated vendor landscape, with a small number of enterprise platforms accounting for the majority of inpatient hospital installations. At the same time, mid-market and specialty systems continue to serve distinct segments of the healthcare ecosystem.

Understanding this distribution helps organizations benchmark their technology environments, assess long-term vendor alignment, and plan for interoperability across care settings. As health systems refine their digital strategies, integrating complementary clinical tools into the EMR becomes increasingly important to maintain documentation continuity, improve workflow efficiency, and preserve a single source of truth for patient records.

References

1. https://www.zoominfo.com/c/epic-systems-corp/41307249

2. https://www.definitivehc.com/blog/most-common-inpatient-ehr-systems

3. https://www.zoominfo.com/c/medical-information-technology-inc/24379824

4. https://healthit.gov/data/quickstats/national-trends-hospital-and-physician-adoption-electronic-health-records/