Weiss Memorial Hospital is located on the site of what used to be Clarendon Beach, a popular beach of the city. From 1980 to the early 2000s, Weiss Hospital was part of the
University of Chicago Medical Center system. Beginning in July 2012, Weiss Memorial Hospital joined the other four
Tenet Healthcare hospitals in Chicago as an
Accountable care organization, part of the Center for Medicare and Medicaid's Shared Savings Program. In January 2019, Tenet Healthcare sold its three remaining Chicago-area for-profit hospitals to
Los Angeles–based
Pipeline Health, which is partially owned and operated by Dr.
Eric E. Whitaker, a friend of former United States president
Barack Obama. The three hospitals included in the sale were Louis A. Weiss Memorial Hospital,
Chicago, Illinois;
Westlake Hospital,
Melrose Park, Illinois; and
West Suburban Medical Center,
Oak Park, Illinois. In December 2022, Resilience Healthcare, with CEO Manoj Prasad, MD, bought West Suburban Medical Center and Weiss Memorial Hospital from Pipeline Health. After a June 2025 closure due to failure of Weiss Hospital's air-conditioning system, US
Centers for Medicare & Medicaid Services revoked Medicare reimbursement to Weiss Hospital starting August 8, 2025. A July 2025 investigation led the
Department of Health and Human Services to conclude that the hospital was failing to comply with physical environment and emergency services standards. At least one journalist found Weiss to be completely closed on July 27, 2025, and barely open on July 31, 2025. Local politicians expressed concern. The hospital ceased most operations on August 8, 2025, including closure of its emergency department and termination of inpatient services, but continued to offer select outpatient services. The hospital terminated all remaining outpatients services on November 26, 2025. ==Patient care and research==