Epic has spent the past several years pulling in many of the country’s largest health systems, with a large share of them leaving Oracle Health. Four more large systems, Adventist Health, Avera Health, ChristianaCare and Kaleida Health, went live on Epic in 2026 alone.
But a group of large U.S. health systems remains on other vendors, and the biggest names among them are investor-owned operators: HCA Healthcare, Tenet Healthcare, Community Health Systems, Universal Health Services and Lifepoint Health. Most of the nonprofit and public systems run Oracle Health, and several have recently deepened that relationship.
Here are 15 of the biggest hospital networks that are not on Epic or have not announced a systemwide move to it. Becker’s limited the list to the 200 largest nonfederal U.S. health systems by revenue:
1. HCA Healthcare (Nashville, Tenn.): Meditech. The roughly 190-hospital for-profit system is partway through a multiyear move to Meditech’s cloud-based Expanse platform. Another 34 of its hospitals went live in September, after 43 in January.
2. Ascension (St. Louis): Epic, Oracle Health, Meditech and Athenahealth. Ascension runs Epic in some markets alongside three other vendors and has not announced a plan to consolidate on a single EHR.
3. Tenet Healthcare (Dallas): Oracle Health. The for-profit operator runs Oracle Health across its hospitals.
4. Universal Health Services (King of Prussia, Pa.): Oracle Health. UHS explained to Becker’s in 2024 why it chose to stay with Oracle rather than switch EHRs.
5. Banner Health (Phoenix): Oracle Health. Banner is the largest nonprofit system on this list that runs a primary non-Epic vendor.
6. Community Health Systems (Franklin, Tenn.): Oracle Health, Athenahealth and Medhost. CHS also deployed Oracle’s enterprise resource planning system enterprisewide.
7. Lifepoint Health (Brentwood, Tenn.): Multiple EHRs. Lifepoint’s CIO, Al Smith, told Becker’s the company has worked with nearly every EHR on the market.
8. BayCare Health System (Clearwater, Fla.): Oracle Health. BayCare worked with Oracle Health on new capabilities for the vendor’s health system operations suite in 2025.
9. Encompass Health (Birmingham, Ala.): Oracle Health. The inpatient rehabilitation operator runs Oracle Health across more than 170 hospitals.
10. Cook County Health (Chicago): Oracle Health. The public system has posted a request for proposals for a new EHR.
11. ScionHealth (Louisville, Ky.): Meditech and Medhost. The acute and postacute hospital system uses multiple EHR vendors.
12. Stony Brook (N.Y.) Medicine: Oracle Health. Stony Brook runs on Oracle Health, citing its configuration, population health and AI capabilities.
13. Huntsville (Ala.) Hospital Health System: Oracle Health. The system said in March 2025 that it would standardize on the Oracle Health Foundation EHR across all of its facilities.
14. Baystate Health (Springfield, Mass.): Oracle Health. Baystate expanded its collaboration with Oracle Health in June.
15. Billings (Mont.) Clinic-Logan Health: Oracle Health. The combined 30-hospital system is in a roughly three-year rollout of Oracle Health that began with its critical access hospitals in early 2025.
NOTE: This is not an exhaustive list. If you know of other top 200 health systems that should be on this list, please email gbruce@beckershealthcare.com.
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