Brief
The economic engine behind where U.S. hospitals build and where they close runs through a single number: the payer-mix gap. Commercial insurers reimburse hospitals at roughly 196% to 199% of Medicare rates on average, with private insurance paying 189% of Medicare for inpatient services and 264% for outpatient services according to one analysis, while Medicare itself reimburses hospitals at only about 82% to 87% of the actual cost of care, producing an estimated $99.2 billion in annual underpayments hospitals must absorb elsewhere. Medicaid sits even lower — federal fee-for-service inpatient base payments run about 22% below comparable Medicare rates before state supplemental payments, per the Medicaid and CHIP Payment and Access Commission. A hospital's financial fate is therefore set largely by its zip code's insurance mix before a single clinical decision is made.
This gap is why capital follows commercially-insured populations. Health systems are increasingly investing in freestanding facilities — ambulatory surgery centers, imaging centers, urgent care clinics, and freestanding emergency departments — sited in high-visibility retail corridors and suburban growth markets, explicitly to expand market reach closer to affluent, commercially-insured patients. Increasingly, these projects are financed through joint ventures with REITs, private developers, and institutional capital partners rather than pure balance-sheet capital, which lets systems build in growth markets while sharing development risk. Meanwhile, safety-net and rural hospitals concentrated in Medicaid- and uninsured-heavy service areas post the opposite numbers: 39% of U.S. hospitals reported negative margins in 2023, and a segmentation study found 85% of the hospitals most vulnerable to Medicaid cuts are in urban areas, not just rural ones — undercutting the assumption that this is purely a rural phenomenon. A U.S. Government Accountability Office report found more urban hospitals closed than opened between 2019 and 2023 — 72 closures against 55 openings — reversing the historical assumption that urban markets were financially safer than rural ones.
Regulatory architecture reinforces this capital sorting. Certificate-of-Need laws, active in roughly 35 states and Washington, D.C., require state health-planning approval before a system can build new facilities or expand services, ostensibly to prevent duplication — but incumbent systems and existing providers can use CON hearings to block new entrants, and research has linked CON regimes to roughly 48-50% fewer hospitals per capita and about 12% fewer beds at a typical hospital. In effect, the same regulatory apparatus that gates rural facility expansion also lets established systems in growth markets slow-walk or block competitor entry, concentrating suburban capacity among incumbents with the deepest balance sheets. Meanwhile New York's 2025 CON reform raised the full-review threshold for general hospital projects to $60 million (from $30 million) — loosening oversight precisely on the mid-size, non-clinical projects most likely to be suburban ambulatory buildouts.
The nonprofit tax exemption adds a second capital subsidy layer that is theoretically tied to community benefit but functions independently of where systems site new buildings. Nonprofit hospitals — about 58% of the roughly 6,100 U.S. hospitals — receive tax benefits worth roughly $37 billion to $37.4 billion annually in federal, state, and local exemptions combined, according to a Brookings-cited academic estimate and Congressional Research Service figures. A 2026 Brookings-covered study found tax-exempt hospitals spend more on administration and capital and perform worse financially than for-profit peers, while the additional charity care the exemption buys is real but small relative to the subsidy's scale — meaning the federal government effectively finances nonprofit systems' capital-heavy suburban expansion strategy through forgone tax revenue with limited enforcement of a reciprocal charity-care obligation. On April 28, 2026, the House Ways and Means Committee summoned CEOs of four major hospital systems, with the committee chairman calling large nonprofit systems' pricing practices comparable to hedge funds, signaling the political fault line is now bipartisan scrutiny of whether nonprofit tax status is subsidizing exactly this pattern of suburban capital concentration.
Private equity ownership represents a third, more extractive channel layered atop the same payer-mix logic. Private equity firms have invested more than $1 trillion in the U.S. healthcare sector over the last decade, and a Campaign for Accountability report comparing 71 private-equity-acquired hospitals to 71 matched peers found PE-owned hospitals collected $669 more in operating profit per patient after acquisition, with operating margins 6.5 percentage points higher — a gap that widened to 10.4 percentage points among privately insured and self-insured patients specifically, where hospitals have more pricing latitude. This confirms the profit is captured disproportionately from the same commercially-insured population that drives suburban siting decisions, while separate Harvard-led research has documented a 25.4% increase in hospital-acquired adverse conditions at PE-owned hospitals following acquisition. On the closure side, federal Medicaid policy is now compounding the payer-mix gap directly: the tax and spending law signed July 4, 2025 (described in reporting as the 'One Big Beautiful Bill Act') is projected by the Congressional Budget Office to cut federal Medicaid and CHIP spending by roughly $911 billion over ten years, with rural areas alone facing an estimated $137 billion to $155 billion of that reduction according to Kaiser Family Foundation analysis — a mechanical transfer of financial risk onto exactly the facilities most dependent on the lowest-paying payer.
Money Flows (11)
Commercial/employer-sponsored insurers→Health systems (hospital & outpatient facilities)
Revenue~196-199% of Medicare rates on average· RecurringMedium conf.
Payment for inpatient and outpatient care delivered to commercially-insured patients, the primary margin source funding capital expansion
Basis: Analysis citing AHA/CBO long-term data; separate figures show private insurance paying 189% of Medicare for inpatient and 264% for outpatient services
CMS (Medicare)→Health systems
Revenue~82-87% of cost of care; -12% to -13% margin on Medicare fee-for-service· RecurringMedium conf.
Fixed, non-negotiable payment for care to Medicare beneficiaries, structurally below cost
Basis: AHA/CBO-cited data and MedPAC margin reporting referenced in analysis, producing an estimated $99.2B annual underpayment
State Medicaid programs→Health systems
Revenue~22% below comparable Medicare inpatient base rates before supplemental payments; ~6% above Medicare after supplemental payments in states that provide them· RecurringMedium conf.
Payment for care to Medicaid enrollees, the lowest-margin payer class concentrated in rural and urban safety-net service areas
Basis: MACPAC data as cited via Commonwealth Fund analysis
Health system capital budgets / REIT and institutional joint-venture partners→Suburban ambulatory surgery centers, imaging centers, urgent care, freestanding EDs
InvestmentUndisclosed (deal-specific)· RecurringMedium conf.
Siting new outpatient access points in high-visibility, high-commercial-insurance suburban and retail corridor markets to expand market reach and margin
Basis: Industry commentary describing systems forming JVs with REITs, developers, and institutional capital to fund suburban freestanding facilities; no aggregate dollar figure disclosed in sourcing
Federal government (Treasury, forgone tax revenue)→Nonprofit health systems
Subsidy~$37B-$37.4B/year (federal, state, and local combined)· AnnualHigh conf.
Tax exemption granted in exchange for community benefit and charity care obligations that a 2026 study found deliver only modest additional charity care relative to subsidy size
Basis: Brookings-cited academic estimate; Congressional Research Service figure; Brown University congressional testimony citing the same total
Private equity firms (LPs and fund capital)→Acquired hospital systems (e.g., Steward Health Care and successors)
Investment>$1 trillion invested across U.S. healthcare sector over the last decade· One-time (per deal), aggregated as a decade totalMedium conf.
Leveraged buyouts of hospital systems, extracting operating profit and in some cases real estate value
Basis: Multiple outlets (Newsweek, USRTK, NBC) citing the aggregate PE healthcare investment figure
Privately insured and self-insured patients (at PE-owned hospitals)→Private equity-owned hospital operators
Fee$669 more in operating profit per patient after PE acquisition; operating margins 6.5 percentage points higher (10.4 points among privately insured/self-insured patients)· RecurringHigh conf.
Higher billed amounts without corresponding reduction in cost of care, captured disproportionately from commercially-insured patients
Basis: Campaign for Accountability 'Overbilled and Overtreated' report comparing 71 PE-acquired hospitals to 71 matched peers, using National Academy for State Health Policy financial data and PESP ownership tracker
Federal government (CMS, via 2025 tax and spending law)→Rural and Medicaid-dependent hospitals
Fine (effective revenue cut)~$911B in projected federal Medicaid/CHIP cuts over 10 years; ~$137B-$155B of that borne by rural areas specifically· Recurring (phased over 10 years)High conf.
Mechanical reduction in the lowest-margin payer's contribution, disproportionately destabilizing facilities most dependent on Medicaid revenue
Basis: Congressional Budget Office estimate of the tax and spending law signed July 4, 2025, and Kaiser Family Foundation rural-impact analysis cited in reporting
Federal government (2025 tax and spending law)→State-administered Rural Health Transformation Program
Grant$50 billion over five years starting in 2027· One-time appropriation, disbursed annually 2027-2031High conf.
Partial offset intended to stabilize rural care infrastructure against the concurrent Medicaid cuts, though characterized by hospital executives and policy analysts as insufficient to reverse closures
Basis: Reporting citing the program created under the 2025 tax and spending law, described by the White House as an unprecedented rural investment; healthcare executives quoted saying the fund 'won't save hospitals'
State health planning agencies (Certificate-of-Need regulators)→Incumbent hospital systems (gatekeeping function)
OtherNot disclosed (regulatory, non-monetary channel with monetary effect)· UnknownMedium conf.
Legal mechanism by which incumbents can contest and delay competitor facility construction, indirectly protecting existing capital investment in served markets
Basis: NCSL and Wikipedia-sourced CON research indicating CON laws are linked to roughly 48-50% fewer hospitals per capita and about 12% fewer beds at a typical hospital; Tennessee case where existing providers blocked a new Vanderbilt-affiliated hospital via CON intervention
Uninsured patients (post-ACA subsidy expiration)→Hospital emergency departments and bad-debt/uncompensated-care pools
OtherUndisclosed aggregate; described only as a rising volume trend· RecurringMedium conf.
Uncompensated care that hospitals must absorb, disproportionately borne by facilities in lower-income service areas with thinner reserves
Basis: New York Times reporting (July 30, 2026) that more people who lost coverage after Congress ended enhanced federal ACA subsidies are seeking emergency care and are unable to pay bills
Who Profits (4)
Health systems operating in suburban, commercially-insured markets (e.g., Cleveland Clinic and peer systems investing in ambulatory/outpatient footprints)
How They Gain: Capture the commercial-to-Medicare reimbursement spread by concentrating new capital in ambulatory surgery centers, imaging, and freestanding EDs sited near employer-insured populations.
Commercial rates run roughly 189-264% of Medicare depending on service type, per cited benchmarking analyses; one large system reports more than half its patient care revenue already comes from outpatient services.
Private equity firms and their limited partners
How They Gain: Extract operating profit from acquired hospitals via higher billing to privately insured patients without offsetting cost reductions, and in some cases through real estate sale-leaseback transactions.
$669 more in operating profit per patient and a 6.5-percentage-point operating margin increase post-acquisition, per the Campaign for Accountability 'Overbilled and Overtreated' comparison of 71 matched hospital pairs.
Large nonprofit health systems
How They Gain: Retain tax-exempt status and its associated capital-cost advantages (tax-exempt bond financing, no income/property tax) while facing limited enforcement of proportionate charity-care obligations.
~$37B-$37.4B/year in combined federal/state/local tax subsidy value, against charity care and community benefit that a 2026 Brookings-cited study found modest relative to the subsidy's scale.
REITs and institutional real estate capital partners
How They Gain: Co-invest in or acquire healthcare real estate assets (ambulatory/outpatient buildings) in high-demand suburban corridors, gaining stable long-term tenancy from health system anchor tenants.
Described in industry sourcing as accessing 'stable, healthcare-oriented assets with long-term tenancy and strong demand fundamentals'; no aggregate REIT investment figure disclosed.
Who Pays (4)
Rural and Medicaid-dependent hospitals
How They Pay: Absorb a payer mix weighted toward Medicare and Medicaid rates that fall well below cost, with insufficient commercial-insurance volume to cross-subsidize, pushing many toward negative operating margins and closure or service-line conversion.
39% of U.S. hospitals reported negative margins in 2023; 734 rural hospitals identified as at risk of closure in a January 2026 analysis, representing roughly one-third of rural facilities nationwide.
Urban safety-net hospitals
How They Pay: Serve concentrations of Medicaid and uninsured patients in cities, facing closure risk that a segmentation study found affects urban facilities disproportionately, contrary to the rural-only narrative.
A GAO report found more urban hospitals closed than opened between 2019 and 2023 (72 closures vs. 55 openings), and a separate study found 85% of the hospitals most vulnerable to Medicaid cuts are located in urban areas.
Rural and low-income patients losing local access
How They Pay: Face longer travel times for emergency, obstetric, and inpatient care as local facilities close or convert, with rural patients needing more than 30 minutes to reach an alternative hospital offering labor and delivery services in about 70% of cases versus 20 minutes or less for most urban patients.
116 rural hospitals ended labor and delivery services since the end of 2020, with 27 closures/planned closures in 2025 alone, per Center for Healthcare Quality and Payment Reform data cited in trade reporting.
Federal and state taxpayers
How They Pay: Fund the nonprofit tax exemption and Medicare underpayment gap without a correspondingly enforced return in community benefit or facility access in underserved areas.
~$37B-$37.4B/year in nonprofit tax subsidy plus ~$99.2B/year in absorbed Medicare underpayment, per the cited estimates.
Where the Trail Goes Dark
⚠Health system joint-venture and REIT financing terms for specific suburban ambulatory facility projects
Without disclosed deal-level capital contributions, ownership splits, or lease terms, it is not possible to quantify how much of suburban buildout capital originates from health system balance sheets versus outside real estate investors, obscuring true capital allocation decision-making.
⚠Hospital-specific charity care and community benefit spending relative to each facility's individual tax exemption value
Aggregate figures exist ($37B subsidy vs. lower charity-care spending) but hospital-by-hospital accounting is inconsistent, making it difficult to identify which specific nonprofit systems are directing tax-advantaged capital toward suburban expansion while underdelivering on community benefit in the same service area.
⚠Private equity hospital ownership structures, including real estate sale-leaseback arrangements and ultimate fund ownership
PESP's tracker identifies roughly 447-488 PE-owned U.S. hospitals but underlying fund structures, debt loads, and real estate spin-off terms are often not fully disclosed, limiting visibility into how much capital is extracted versus reinvested.