Most large health systems have spent the last several years working toward a single, unified EHR platform. But getting there is rarely quick.
Mergers, acquisitions and phased rollouts mean many of the country’s biggest hospitals and health systems are still operating on more than one core EHR while they work toward consolidation.
Here are five health systems currently navigating multiple EHR platforms, based on Becker’s reporting:
1. UPMC (Pittsburgh)
UPMC has been running nine separate EHRs, the result of decades of mergers and acquisitions. Its core systems today are Oracle Health (formerly Cerner) on the inpatient side and Epic for ambulatory care. The health system announced in 2023 that it would consolidate to a single Epic platform, with a target of mid-2026. As of a February 2026 update, about 40% of the organization had converted to the unified platform, with the remaining 60% scheduled to convert that spring.
2. CommonSpirit Health (Chicago)
CommonSpirit has been operating with more than 10 different EHRs across its five regions, including four distinct instances of Epic, following its 2019 merger of Catholic Health Initiatives and Dignity Health. As of a May 2026 investor call, the 137-hospital system had reduced its EHR portfolio from 19 systems to 11, with 65% of the organization live on Epic through its “OneEHR” initiative. Full consolidation is targeted for 2030, and executives say the system is running about two years ahead of that schedule.
3. Northwell Health (New Hyde Park, N.Y.)
New York’s largest health system is in the middle of a $1.2 billion, multiyear project to consolidate more than 30 core EHRs across its 28 hospitals and hundreds of ambulatory sites onto a single Epic platform. Northwell completed its first major go-live in its Western Region in November 2025 and its second, larger wave (covering nine hospitals and about 42,000 users in its Central Region) in mid-2026. The rollout also includes more than 15 specialty systems and roughly 200 additional applications still being replaced.
4. Trinity Health (Livonia, Mich.)
The 92-hospital Catholic system has been consolidating a collection of legacy EHRs into a single Epic instance as part of an $800 million rollout, expected to make it the largest single-instance Epic user in the country. The project was in its 12th and final implementation wave as of early 2026, with Loyola Medicine in Maywood, Ill., among the last sites to go live. The timeline was pushed back roughly eight months following the Change Healthcare cyberattack.
5. HCA Healthcare (Nashville, Tenn.)
HCA has been rolling out Meditech Expanse across its hospitals in a multiyear enterprise deployment, building on a decades-long partnership with Meditech. The health system brought the platform live to 43 hospitals in January 2026, with plans to extend it to additional facilities over time, meaning different HCA hospitals are currently running different EHR configurations during the transition.
Editor’s note: EHR consolidation is an active, fast-moving area of health IT reporting. Timelines and completion percentages for the health systems above may have shifted since the source reporting cited here.
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