Spillover effects from private equity acquisitions in the health care sector

Brown researcher awarded grant to assess the spillover impact of private equity practice acquisition on health care spending, quality and access outcomes

The health care sector is witnessing a significant transformation as private equity (PE) firms step up their acquisition of physician practices. This trend reflects a broader shift within the health care industry of corporate investors acquiring health care providers, driven by the allure of short-term profitability and efficiency gains. It also raises questions about the implications for health care quality, accessibility and the overall impact on the U.S. health care system.

A new study led by Yashaswini Singh, assistant professor of health services, policy, and practice and a member of Brown’s Center for Advancing Health Policy Through Research, will explore this phenomenon and the effects of PE acquisitions on health care accessibility. Funded by the National Institute for Health Care Management Foundation, the study, “Spillover Effects of Private Equity Acquisitions of Physician Practices on Local Market Competitors: Implications for Access to Care,” represents a pioneering investigation into a critically under-examined area. 

Singh’s prior research shows that PE acquisitions of physician practices often lead to increased health care spending and utilization, changes in workforce composition and a reshaping of services based on profitability. Yet the extended impact of these changes, especially the “spillover effects” on competing practices within the same locale, remains largely unexplored. 

Singh’s new study will consider a core concern: the propensity of PE firms to prioritize short-term financial gains, potentially at the expense of offering comprehensive care. This strategy may lead to the curtailment or discontinuation of less lucrative services, disproportionately burdening independent medical practices, as they may have to accommodate an increased demand from patients turned away from PE-owned offices.

Singh and her study co-author, Durgar Borkar, assistant professor of ophthalmology at Duke University, are focusing on the field of ophthalmology, merging hand-collected data on PE ownership with longitudinal medical claims data. Their work is set to make a significant contribution to the field, providing the first policy-relevant empirical evidence on the market-wide effects of PE acquisitions. 

We spoke to Professor Singh about her upcoming study. 

What are the general developments surrounding PE firms and physician practices in the U.S.?

Over the last decade, there’s been a rapid increase in institutional investors, such as private equity funds, acquiring physician practices, primarily through consolidation. Private equity aims to generate approximately 20% annual returns over short investment periods of three to seven years. This raises concerns about whether private equity’s financial incentives can coexist with physician incentives to deliver affordable, accessible, high-value care for patients.

In the past five years, acquisitions have occurred in several specialties, including dermatology and ophthalmology, and more recently, primary care. A growing body of literature is examining the impact of these acquisitions on health care spending, quality and access outcomes, which is the focus of my research and this grant.

According to one report, PE ownership of physician practices quadrupled between 2010 and 2020. Nonetheless, it’s difficult to get an accurate count. Why is this the case? 

That’s in the ballpark, indicating a rapid trend in corporate consolidation in the last five to ten years. However, specific numbers are hard to confirm due to the private nature of these transactions. Private equity companies are exempt from Securities and Exchange Commission disclosure requirements, and most physician practice acquisitions go unreported to antitrust authorities like the Federal Trade Commission.This lack of transparency is a key policy issue, making it hard for researchers, policymakers, physicians and patients to understand the real magnitude of these trends.

In ophthalmology, many services are financed by Medicare, a government payer. If private equity changes practice patterns in ways that affect Medicare patients, it raises concerns for patient care and taxpayer dollars.

Yashaswini Singh Assistant Professor of Health Services, Policy and Practice
 
Woman smiling

What inspired you to focus on the spillover effects of private equity acquisitions, particularly in ophthalmology?

The rapid acceleration of private equity in the last five years and the concentration of PE penetration in specific geographies motivated my focus. In ophthalmology, many services are financed by Medicare, a government payer. If private equity changes practice patterns in ways that affect Medicare patients, it raises concerns for patient care and taxpayer dollars.

I’m also interested in how entities in the same markets as those receiving private equity investments respond. Do they seek PE financing, merge with others or exit the market? These responses have significant implications for patient access to care.  

How do you plan to ensure that your findings reach and influence policymakers?

It’s a very important question. These issues are personal in that they affect our day-to-day lives and health in ways we might not be paying attention to. Private equity in health care has received a lot of policy attention at both the federal and state levels. I am affiliated with the Center for Advancing Health Policy Through Research (CAHPR) here at Brown’s School of Public Health. Working closely with collaborators within CAHPR, we have a targeted dissemination strategy that aims to translate research findings to a broader policy audience. 

We have developed relationships with leading health care reporters and will share findings with policymakers, including, state and federal legislative staff, federal agency staff, the Federal Trade Commission, and in the media. There are journalists covering the effect of private equity in health care, and we plan deliberate outreach to ensure our research reaches beyond academic journals. We will also target high-impact journals in health policy, health economics, and health services research, but our ultimate goal is to reach policy audiences as well.

“ Private equity investments in health care don’t happen in a vacuum. Understanding the aggregate effects at a market level will help us comprehend how private equity operates across settings. ”

Yashaswini Singh Assistant Professor of Health Services, Policy and Practice

Beyond this study, what are the other areas in health care where you believe the spillover effects of private equity acquisitions need investigation?

Every segment requires investigation. Private equity investments in health care don’t happen in a vacuum. What we see is a practice that was acquired, but we don’t see the practices that were courted by private equity, some of which said yes and others, no. Understanding the aggregate effects at a market level will help us comprehend how private equity operates across settings. 

Spillovers in primary care, for example, where there’s been a rapid increase in consolidation by private equity investors in the last three to four years, are crucial. This is another area of work I’m developing at Brown. 

The effects in primary care can have serious implications for quality and access, especially given the existing shortage of primary care practitioners. It’s to be seen if private equity exacerbates underlying disparities in health care by affecting practice patterns of entities courted by private equity in the past but decided not to sell to those investors. There is also potential for positive spillovers: if PE investors make technological investments that improve the quality of care (e.g. by reducing wait times), this can incentivize local competitors to compete on quality or risk losing patients to higher-quality competitors.