Epic has spent the past several years pulling in many of the country’s largest health systems, a disproportionate share of them leaving Oracle Health.
Yet a group of big U.S. health systems still runs Oracle Health as its primary EHR. Investor-owned operators Tenet Healthcare and Universal Health Services lead the list, along with large nonprofits such as Banner Health and BayCare Health System and public systems in Chicago and Los Angeles. Some of those organizations have recently doubled down on the vendor, including Huntsville Hospital Health System, Baystate Health and Billings Clinic-Logan Health.
Here are 14 of the biggest health systems that use Oracle Health as their primary EHR and have not announced a move away from it. Becker’s limited the list to the 200 largest nonfederal U.S. health systems by revenue. Oracle Health’s largest customers are federal: the Department of Veterans Affairs, which had deployed the EHR at 17 medical centers as of August, and the Department of Defense, which completed its MHS Genesis rollout in 2024.
1. Tenet Healthcare (Dallas). The for-profit operator runs Oracle Health across its hospitals.
2. Universal Health Services (King of Prussia, Pa.). UHS told Becker’s in 2024 why it decided to stay with Oracle rather than switch EHR vendors.
3. Banner Health (Phoenix). Banner is the largest nonprofit system on this list.
4. BayCare Health System (Clearwater, Fla.). BayCare worked with Oracle Health in 2025 on new capabilities for the vendor’s health system operations suite.
5. Los Angeles County Department of Health Services (Los Angeles). The county’s public health system runs ORCHID, an Oracle Health EHR used across all of its care settings, under a contract that runs through 2032.
6. Encompass Health (Birmingham, Ala.). The inpatient rehabilitation operator runs Oracle Health across more than 170 hospitals.
7. McLaren Health Care (Grand Blanc, Mich.). McLaren selected Cerner, now Oracle Health, as its EHR vendor in 2015.
8. Cook County Health (Chicago). The public system runs Oracle Health but has issued a request for proposals for a new EHR. Becker’s found no announced award.
9. Stony Brook (N.Y.) Medicine. The academic health system has cited Oracle Health’s configuration, population health and AI capabilities as reasons it uses the EHR.
10. Huntsville (Ala.) Hospital Health System. The system said in 2025 it would standardize on the Oracle Health Foundation EHR across all of its facilities.
11. Baystate Health (Springfield, Mass.). Baystate expanded its strategic collaboration with Oracle Health in June.
12. Keck Medicine of USC (Los Angeles). Keck Medicine has used Oracle Health, formerly Cerner, since at least 2019, when it integrated prescription drug monitoring program access into the EHR.
13. LifeBridge Health (Baltimore). LifeBridge patient data was compromised in a 2025 cyberattack on Oracle Health.
14. Billings (Mont.) Clinic-Logan Health. The combined 30-hospital system is rolling out Oracle Health across all of its hospitals in a roughly three-year transition that began with its critical access hospitals in 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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