Rush and Endeavor Health Announce Merger Plans

The proposed healthcare system would combine 12 hospitals across Northern Illinois under the Rush name.

Updated on Oct. 20, 2026 in Healthcare

Rush and Endeavor Health Announce Merger Plans

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Rush University System for Health and Endeavor Health have unveiled a plan to merge into a singular healthcare system operating under the Rush brand. The newly integrated group would span 12 hospitals and 400 total sites across Northern Illinois.

Why it matters

The organizations intend to combine academic medical training with a larger geographic footprint to improve patient access and care delivery. Endeavor Health has committed $1 billion in incremental investment to support the new system.

The proposed system aims to integrate 12 hospitals and 400 healthcare sites, supported by a $1 billion incremental investment from Endeavor Health. The expansion is designed to fill geographic service gaps across Northern Illinois.

The players

Rush University System for Health

This is an academic medical system that includes Rush University Medical Center and Rush University.

Endeavor Health

This organization operates a network of hospitals in communities including Evanston, Naperville, and Chicago.

The details

The merger seeks to unite the academic and clinical resources of Rush University with the expansive network of Endeavor Health locations. The deal remains subject to the Hart-Scott-Rodino Review process and must receive formal approval from federal and state regulators.

The merger is estimated to close by next summer.
NorthShore and Advocate applied for a failed merger in September 2014.
Regulators sued to block that 2014 merger attempt in December 2015.
A federal judge issued an injunction stopping the NorthShore-Advocate deal in March 2017.
Advocate Health Care completed a merger with Aurora Health Care in April 2018.

Market Landscape

This move represents a significant consolidation attempt in the Northern Illinois healthcare market, testing current regulatory appetites for hospital expansion. It follows a historical pattern of intense antitrust scrutiny that previously derailed high-profile mergers in the region.

Patients across the expanded service area may see changes in site-specific administrative processes as IT systems are integrated over the coming years. Residents in communities like Naperville and Evanston should monitor for potential updates regarding service availability at their local facilities.

The takeaway

Large-scale hospital mergers frequently face years of scrutiny from antitrust regulators concerned about potential price increases. Patients should prepare for a lengthy transition period as administrative infrastructure undergoes multi-year integration.

What happens next

The transaction must complete the Hart-Scott-Rodino Review process to secure federal antitrust approval. Closing is currently targeted for the summer of 2027.