Private equity now holds nearly 12% of U.S. hospitals as oversight gaps widen

Private equity ownership has moved from a niche concern to a material slice of the hospital market. New data from the Private Equity Stakeholder Project show that 11.9% of U.S. hospitals are now owned by private equity firms, a share that translates to more than 500 facilities across the country. In a system where ownership can shape staffing patterns, service lines, debt load, and discharge decisions, the scale alone is enough to force a closer look at how these hospitals are run.

The tracker counted 561 private equity-backed facilities out of 4,714 Medicare-enrolled hospitals. That total includes acute care hospitals as well as specialty facilities, and it marks a rise from 488 facilities in March 2025. The increase is not just a balance-sheet story. More ownership concentration in healthcare raises basic questions about whether short investment horizons can coexist with the long, expensive work of hospital care, where quality often depends on maintaining staff, equipment, and capacity that do not produce immediate returns.

Private equity’s footprint is even larger in the for-profit sector. Roughly one-third of all for-profit hospitals in the United States are owned by these firms, giving them a major position in a segment already more exposed to market pressure than nonprofit systems. The ownership pattern also skews heavily toward a small number of investors. Apollo Global Management, which owns Lifepoint Health and ScionHealth, controls 200 facilities in the United States. Welsh, Carson, Anderson & Stowe owns 124 facilities. When a handful of firms shape the fate of hundreds of hospitals, the consequences travel far beyond boardrooms.

The quality signal remains mixed, but the warning signs are hard to ignore

The argument over private equity in healthcare has never been purely ideological. It has centered on a practical clinical question: what happens to patients after a hospital is acquired, recapitalized, and pushed to generate returns for investors? Existing evidence does not produce a single clean answer. One 2022 study found no difference in cost or quality for patients with myocardial infarction after private equity affiliation, suggesting that ownership change does not automatically degrade care in every setting. Yet another study published in 2023 found higher fall and infection rates among patients treated at private equity-owned hospitals.

Those two findings can coexist because hospitals are not interchangeable. Outcomes depend on staffing intensity, case mix, service-line pressure, and how aggressively a facility cuts operating costs after acquisition. Falls and infections are especially sensitive to bedside staffing and process reliability. When the organization trims nursing support, reduces ancillary staff, or pushes throughput too hard, the first casualties are often the safety events that require consistent human monitoring rather than expensive technology.

A single ownership model does not guarantee poor care. It does, however, create a financial incentive structure that can collide with patient safety when margins tighten.

PESP’s tracker also found that ratings data were available for only 17% of the private equity-owned hospitals it identified. Even with that limited visibility, the overall pattern was unfavorable: most of the hospitals that could be scored landed at three stars or below, while non-private equity facilities tended to cluster around four- and five-star ratings. The gap is not proof of causation, but it is enough to suggest that transparency remains far too thin for a market this large.

Rehabilitation, LTACHs, and joint ventures form a large share of PE holdings

The tracker’s ownership breakdown points to a particular private equity preference for post-acute and medically complex facilities. Nearly a quarter of PE-owned hospitals are rehabilitation centers, another 22.6% are long-term acute care hospitals, and 23.4% are non-specialty hospitals. About 5% are LTACHs or non-specialty hospitals that include rehabilitation services, meaning nearly one-third of the portfolio offers rehab in some form.

That mix matters because rehabilitation and long-term acute care settings sit at the intersection of chronic illness, functional recovery, and prolonged dependency on clinical oversight. These hospitals are not built for quick turnovers. They care for patients who often require more time, more therapy, and more coordination than short-stay facilities. In that environment, ownership decisions can affect whether services are maintained, consolidated, or pared back in the name of efficiency.

The tracker also found that 23% of PE-owned U.S. hospitals are held through joint ventures with nonprofit health systems. Those arrangements draw scrutiny because they can blur lines of accountability. A nonprofit partner may provide institutional legitimacy, while a private equity investor captures financial upside through structures that are harder to inspect. When ownership is layered and partially obscured, regulators and communities have a harder time determining who is responsible when service quality erodes or a facility closes.

Bankruptcy history and state action have pushed the issue into policy

The recent bankruptcies of Steward Health Care and Prospect Medical Holdings have changed the tone of the debate. They turned a long-running policy concern into a visible operational failure, with hospital closures and restructuring plans affecting patients, employees, and local access to care. Those cases also gave lawmakers a concrete example of what can happen when aggressive financial engineering intersects with fragile hospital finances.

A 2025 Senate report examined the impact of private equity on Prospect and Lifepoint Health, and 11 state legislatures have passed laws expanding oversight of healthcare deals. The policy response reflects a basic reality: hospital ownership is not just a corporate governance issue. It shapes where patients go in an emergency, whether a rural region retains inpatient capacity, and whether a facility can sustain quality when reimbursement tightens.

The regulatory gap remains a central problem. Limited intervention has made it difficult to build a complete national picture of private equity’s role in hospitals and the outcomes tied to that role. The PESP data expose how uneven the current visibility is: broad ownership can be documented, but detailed quality data often cannot. In hospital care, that blind spot is dangerous. Patients rarely choose ownership structures, yet they experience the downstream effects when a facility cuts staffing, loses financial stability, or collapses into bankruptcy.

The next question is not whether private equity has arrived in hospital care. It has. The harder question is whether regulators can build enough ownership transparency and outcome tracking to tell which facilities are absorbing the pressure and which patients are paying the price.


Reporting by Dr. A.R. Athira, MBBS for Medicine World Foundation, with additional data provided by Healthcare Dive.