The most widely used EHR software examples in US hospitals are Epic, Oracle Health (formerly Cerner) and MEDITECH, which together run more than three quarters of acute care hospitals. In clinics and physician practices, Epic, eClinicalWorks and athenahealth lead, alongside NextGen, Greenway, ModMed and many specialty systems. Outside the US the list changes: GP systems dominate in the UK, Oracle Health is common in UAE public hospitals, and India mixes government, open-source and local commercial systems.
This is a neutral, factual overview, not a ranking. Every system here works well for some organisations and poorly for others. We cover the major systems by market and segment, what the market share data says, how to compare them, and when none of them fits and a custom layer makes sense.
If you are unsure of the terms, start with our explainer on EHR vs EMR.
US hospital EHR systems: market share
KLAS Research's 2025 acute care EHR market share report, released in May 2026 and reported by Fierce Healthcare, estimates these shares of US acute care hospitals:
| Vendor | Share of acute care hospitals (2025) | Notes |
|---|---|---|
| Epic | 43.7% | Up from 42.3% in 2024; about 57% of hospital beds |
| Oracle Health | 21.9% | Down from 22.9% |
| MEDITECH | 14.7% | Strong among standalone community hospitals |
| TruBridge | 7.6% | Focus on rural and community hospitals |
| Altera Digital Health | 2.9% | Sunrise and Paragon platforms |
Those five account for roughly nine in ten US acute care hospitals. KLAS also noted that purchasing activity slowed in 2025, with very few large health systems making enterprise-wide decisions.
US ambulatory and physician practice EHRs
For outpatient practices, Definitive Healthcare's ambulatory EHR data as of October 2025 puts Epic first with about 19.5% of installs, followed by eClinicalWorks at about 11.9% and athenahealth at about 6.9%. The rest of the market is fragmented across dozens of vendors, many focused on one specialty.
EHR software examples compared
This table covers the systems readers most often ask about. "Certified FHIR API" refers to the standardised patient and population APIs that US certified EHRs must offer; how easy they are to use in practice varies.
| System | Main segment | Deployment | Certified FHIR API (US) | Typical pricing model |
|---|---|---|---|---|
| Epic | Large health systems, academic centres, growing in smaller hospitals | Hosted by Epic or self-hosted | Yes | Enterprise licence plus implementation |
| Oracle Health (Millennium) | Hospitals and health systems, US federal, Middle East | Oracle cloud or hosted | Yes | Enterprise licence or subscription |
| MEDITECH Expanse | Community and mid-size hospitals | Cloud (MEDITECH as a Service) or hosted | Yes | Licence or subscription |
| TruBridge | Rural and critical access hospitals | Hosted | Yes | Subscription |
| Altera Sunrise and Paragon | Hospitals and health systems | Hosted or on-premise | Yes | Licence or subscription |
| athenaOne (athenahealth) | Ambulatory practices of all sizes | Cloud | Yes | Often a percentage of collections or per provider |
| eClinicalWorks | Ambulatory practices, community health centres | Cloud or hosted | Yes | Per provider per month |
| NextGen Enterprise | Mid to large ambulatory groups | Cloud or hosted | Yes | Subscription |
| Greenway Intergy and Prime Suite | Small to mid practices | Cloud or hosted | Yes | Subscription |
| ModMed | Specialty practices (dermatology, ophthalmology, orthopaedics and others) | Cloud | Yes | Subscription |
| OpenEMR | Small practices, budget-conscious users | Self-hosted or vendor-hosted | Available | Free software; pay for support |
| OpenMRS and Bahmni | Hospitals and programmes in low and middle income countries | Self-hosted or cloud | FHIR support | Free software; pay for implementation |
EHR examples by type of organisation
Market share is one lens. Another is the type of organisation, because systems are built around very different assumptions.
| Organisation | Common EHR examples | What they usually need most |
|---|---|---|
| Academic medical centre | Epic, Oracle Health | Research data, many specialties, complex orders |
| Community hospital (25 - 200 beds) | MEDITECH, Epic (Community Connect), Oracle Health, TruBridge | Lower cost of ownership, hosted options |
| Rural or critical access hospital | TruBridge, MEDITECH, Epic via a partner health system | Small IT team, bundled billing |
| Large multi-specialty group | Epic, athenaOne, NextGen, eClinicalWorks | Scheduling, referrals, population health |
| Small primary care practice | athenaOne, eClinicalWorks, Greenway, open-source options | Fast notes, billing services, low upfront cost |
| Specialty practice | ModMed and other specialty systems | Specialty templates, imaging and device links |
| Community health centre | eClinicalWorks, NextGen, Epic via partners | Grant reporting, sliding-fee billing |
Epic's Community Connect programme, in which a large health system extends its Epic instance to smaller affiliated hospitals and practices, is one reason Epic's share among smaller organisations keeps growing.
Open-source and low-cost EHR options
Open-source systems remove licence fees but not the cost of running a clinical system. You still pay for hosting, implementation, configuration, training, upgrades and support, either to an in-house team or to a service partner.
- OpenEMR is widely used by small practices and has a large volume of community documentation. In the US, some releases have been certified, but check the current status before relying on it.
- OpenMRS began as a medical record platform for resource-limited settings and is used in many national programmes.
- Bahmni packages OpenMRS with lab, pharmacy, billing and imaging components into a hospital system.
Open-source makes most sense when you have, or can hire, a reliable implementation partner and want control over the code. It makes least sense when you need US certification, deep payer integration and vendor-backed support from day one.
What EHR do most hospitals use outside the US?
UK
NHS hospital trusts use a mix of large international EHRs (Epic and Oracle Health in several large trusts) and UK suppliers such as System C and others, under the term EPR (electronic patient record). General practice in England is dominated by two GP clinical systems, EMIS Web and TPP SystmOne. NHS standards, GP Connect and the Data Security and Protection Toolkit shape what any system must support.
UAE
Large public operators have run international systems for years. Abu Dhabi's SEHA network has used Cerner, now Oracle Health, and Mubadala Health announced in 2023 that it would run its Oracle Health EHR on Oracle Cloud Infrastructure in the UAE. The Dubai Health Authority runs its own EMR, Salama, across its public facilities, and Emirates Health Services uses the Wareed system. Private clinics use a wide range of international and regional products. Whatever the system, it must connect to the emirate's exchange: NABIDH in Dubai, Malaffi in Abu Dhabi or Riayati federally. See our guide to EMR software in the UAE.
India
India has no dominant EHR vendor. Large private hospital groups often run international or in-house systems, many smaller hospitals use local hospital management systems with EMR modules, and states commonly use NIC's e-Hospital, which NHA lists among ABDM-integrated HMIS products. Open-source Bahmni, built on OpenMRS, began at a charitable hospital in central India and is used by hospitals in many countries. ABDM certification increasingly shapes which systems are chosen. Our guide to EMR software for hospitals in India covers the buying side.
How to compare EHR systems
Market share tells you what is common, not what fits. Compare systems on these points:
- Fit with your setting. Inpatient, outpatient, specialty or mixed. A great ambulatory EHR may be a poor hospital system and vice versa.
- Regulatory fit. US certification, UK assurance, UAE exchange connection or ABDM certification, depending on where you operate.
- Total cost. Licence or subscription, implementation, hardware or hosting, interfaces, training and yearly support.
- Integration access. Which APIs exist, whether they allow writing data back, what programmes and fees apply, and how long approvals take. Our EHR integration guide covers the main vendor programmes.
- Usability. Time to complete common tasks, template flexibility and mobile access.
- Local support and language. Arabic, Indian languages, local billing and claims formats.
- Data exit. How you export all your data if you move.
When the off-the-shelf list doesn't fit
Commercial EHRs cover general care well. They tend to struggle in a few places:
- Specialty workflows such as behavioural health, fertility, dialysis, home care or dental, where generic templates slow clinicians down.
- New care models such as virtual-first clinics or hospital at home, where the workflow does not match a traditional encounter.
- Operations around the record: front desk, queues, billing, insurance and follow-up in markets like India and the Gulf, where local processes differ from US assumptions.
- Cost-sensitive settings where enterprise licences are out of reach.
In those cases, the usual answer is not to replace the EHR but to build a custom layer on its APIs, or to pair a smaller EMR with a hospital operations system. A full custom build makes sense only when no core fits; our guide on how to build an EHR system covers that decision.
How Algon approaches EHR projects
Algon is a Kochi-based team working with hospitals and clinics in India, the UAE and the USA. We do not resell any EHR. Our work sits around the record: healthcare integration that connects an existing EHR to labs, imaging, insurers and messaging, and custom hospital management systems or clinic automation where off-the-shelf products leave gaps in daily operations.
Conclusion
Epic, Oracle Health and MEDITECH dominate US hospitals; Epic, eClinicalWorks and athenahealth lead US practices; and the UK, UAE and India each have their own mix shaped by national rules. None of these is the "best EHR" in general. The right one depends on your setting, your regulator, your budget and how well its APIs let you connect everything else.
When none fits, look first at a custom layer on an existing core before building a new record from scratch. Our healthcare software development team can help scope either path.
Frequently asked questions
What are the most common EHR systems?
In US hospitals, Epic, Oracle Health and MEDITECH are the most common, followed by TruBridge and Altera. In US physician practices, Epic, eClinicalWorks and athenahealth lead, with NextGen, Greenway and ModMed also widely used.
What EHR do most hospitals use?
In the US, Epic is used by about 43.7 percent of acute care hospitals according to KLAS's 2025 estimates, followed by Oracle Health at 21.9 percent and MEDITECH at 14.7 percent. Outside the US the mix varies by country.
What is the best EHR for small practices?
There is no single best option. Cloud-based ambulatory EHRs such as athenaOne, eClinicalWorks, NextGen, Greenway and specialty systems like ModMed are common choices. Compare them on specialty fit, total cost, usability, integration access and local support.
What EHR software is used in India and the UAE?
India has no dominant vendor: large groups use international or in-house systems, many hospitals use local HMS products with EMR modules, states often use NIC's e-Hospital, and some use open-source Bahmni. In the UAE, Oracle Health is common in large public networks, DHA runs Salama, and all systems connect to NABIDH, Malaffi or Riayati.
How much do EHR systems cost?
Costs vary widely. Small practices usually pay a monthly subscription per provider or a percentage of collections, plus implementation. Hospital EHR projects are priced as enterprise licences with large implementation budgets. Open-source systems avoid licence fees but still need implementation and support.
Is Epic the same as Oracle Health or Cerner?
No. Epic and Oracle Health are separate companies with competing EHR platforms. Cerner was acquired by Oracle in 2022 and its EHR is now sold as Oracle Health.
