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A Community Service Society of New York (CSS) report published in October 2026 found that New York hospitals involved in mergers recorded substantially faster growth in hospital-reported charges than hospitals that never merged. Average charges statewide rose more than 182% from 2009 through 2024, versus 44% medical inflation. The report estimates that mergers were associated with an additional $9,008 in 2024 dollars. That figure is not a universal increase in what every patient or insurer paid: the analysis uses hospitals’ full billed charges, while negotiated payment data are not publicly available.
What did the New York hospital-consolidation study find?
The CSS report, The Impact of Hospital Consolidation on Health Care Affordability in New York State, analyzed hospital charges and reported costs from 2009 through 2024. It found a consistent post-merger pattern: charges climbed materially, while reported costs did not change significantly with merger status.
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- Average New York hospital charges increased by more than 182% between 2009 and 2024.
- Medical inflation increased 44% over the same period.
- Of 180 hospitals with usable merger and financial data, 101 underwent at least one merger and 79 did not.
- Those 101 hospitals participated in 65 hospital-to-hospital or hospital-system transactions.
- Charges at merged hospitals increased 1.5 times faster than at hospitals that never merged.
- The report’s estimated overall merger effect was an additional $9,008 in hospital charges, measured in 2024 dollars.
Elisabeth Benjamin, a CSS report author and president of health initiatives, described the trend as “an unsustainable trajectory we’re on where prices are going up four times faster than inflation.”
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How was the study conducted, and what does it actually measure?
Researchers used 37,462,168 inpatient claims from 244 hospitals in the New York State Department of Health’s Statewide Planning and Research Cooperative System (SPARCS). They calculated inflation-adjusted hospital-level averages, matched hospitals to American Hospital Association annual-survey and merger records using street addresses, and retained 180 hospitals with complete enough information for the main analysis.
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The statistical model was an extended two-way fixed-effects design. It compared hospitals before and after a merger with hospitals that had not yet merged, while accounting for hospital-specific characteristics and year-specific shocks, including the COVID-19 period. In the Metropolitan Area, the estimated merger effect on charges was statistically significant at p < .001.
The study covers horizontal transactions involving hospitals or hospital systems in New York or neighboring states. It does not cover every form of consolidation, such as a hospital buying an independent physician practice, and it excludes mergers involving only hospitals in distant states.
Charge, cost and payment are different numbers
A charge is the hospital’s full list bill. A cost is what the hospital reports spending to provide care. A payment is the amount actually received from a patient or insurer after negotiated rates, contracts, discounts and public-program rules are applied. SPARCS makes charge and cost data available, but negotiated payment data are not publicly available. Consequently, the $9,008 estimate should not be presented as a guaranteed increase in an individual’s out-of-pocket bill.
Which New York regions saw the largest charge increases after mergers?
CSS compared four state health-department regions and followed hospitals for nine years after a merger. In every region listed, charges grew faster than reported costs.
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| Region | Hospitals merged | Charges at merger | Charges nine years later | Charge growth | Reported cost growth | Charge growth versus cost growth |
|---|---|---|---|---|---|---|
| Metropolitan Area | 58 of 99 | $51,660 | $88,120 | 71% | 32% ($16,560 to $21,820) | 2.2 times faster |
| Capital District | 11 of 20 | $22,250 | $28,360 | 26% | 17% ($9,850 to $11,520) | 1.5 times faster |
| Central New York | 9 of 23 | $24,310 | $43,860 | 80% | 18% | 4.5 times faster |
| Western Region | 23 of 38 | $19,489 | $28,490 | 46% | 36% ($9,333 to $12,725) | 1.3 times faster |
The Capital District figures provide the clearest Albany-area example: charges rose 26% over nine years after merger, compared with a 17% increase in reported costs.
Did mergers raise charges for common procedures?
Yes. CSS tested three inpatient procedure groups chosen to represent different age groups. Each showed a significant increase in post-merger charges without a statistically significant corresponding increase in costs.
| Procedure group | Estimated overall charge increase | What the report found about timing and costs |
|---|---|---|
| Appendectomies | $6,269 | The charge effect was statistically significant; the cost effect was not. |
| Vaginal deliveries | $3,525 | Charge effects were significant from two through 10 years after merger; costs were not significantly affected. |
| Knee replacements | $11,508 | Charge effects were significant at four, six, and eight to nine years after merger; costs were not significant. |
The procedure results make it less likely that the statewide pattern is driven by one isolated service line. They also found no evidence that merger-related efficiencies produced cost savings that were passed through as lower charges for patients or payers.
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The CSS regional analysis counts 11 of 20 Capital District hospitals as having participated in a merger during 2009–2024. A Times Union account published October 24, 2026, identified eight local hospitals involved in mergers in its news coverage and reported that Albany Med Health System and Ellis Medicine were contemplating a merger at that time. St. Peter’s Health Partners and Albany Med had also acquired several local hospitals during the study period.
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Those local transactions matter because fewer independent hospitals can leave insurers with less leverage when negotiating network rates. Consolidation can also change where services are offered: rural communities and urban neighborhoods of color may face disproportionate effects when units close, access is reduced or higher prices accompany a merger. The CSS report documents these equity concerns but does not claim that every merger produces the same access outcome.
How concentrated are New York hospital markets?
Using hospital-market Herfindahl-Hirschman Index measures, CSS found that by 2024 only one of eight New York insurance-rating regions remained competitive. Three regions were moderately concentrated and four were highly concentrated. A concentrated market does not by itself prove that a particular transaction caused a particular bill, but it indicates fewer alternatives for patients and insurers and helps explain why post-merger price negotiations may become more difficult.
Did New York policy encourage hospital consolidation?
CSS connects today’s market structure to several decades of policy decisions. The 2005 Berger Commission identified hospitals for closure. The 2011 Vital Access Provider Program offered support to hospitals undergoing mergers or restructuring. The 2014 Delivery System Reform Incentive Payment program created regional provider systems, often under large hospitals. New York’s Public Health and Health Planning Council reviews ownership changes and hospital mergers.
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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteThe report does not conclude that any one program alone caused the charge increases. Its argument is that policies supporting restructuring, closures and regional systems helped create a market in which many hospitals became part of larger organizations, while prices rose faster than underlying reported costs.
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What remedies does CSS recommend?
CSS proposes several policy changes. None of these proposals is enacted law merely because it appears in the report.
Publish and use the All-Payer Database
New York authorized an All-Payer Database in 2011. CSS says that, after 15 years and $159 million invested, hospital data still had not been released publicly as of 2026. The organization wants the state to publish the database and require policymakers to use it so analysts can examine negotiated payments, not just list charges.
Set post-merger price guardrails
The report asks the Public Health and Health Planning Council to require merging systems to estimate expected price effects and commit not to exceed a defined threshold after the transaction. Such a rule would target the period when a newly enlarged system may have greater bargaining power.
Adopt site-neutral pricing
CSS highlights the proposed Fair Pricing Act, which would cap certain outpatient prices at 150% of Medicare rates. The report cites a Brown University estimate of $1.1 billion in annual commercial-payment savings, including $213 million benefiting individual patients. Those figures are estimates tied to the proposal, not observed savings from an enacted program.
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Consider broader rate regulation
CSS also discusses the New York Health Act and a return to all-payer rate setting. These are broader policy options that would regulate payment levels across payers rather than relying primarily on competition between hospital systems.
How should patients and employers interpret the findings?
The safest interpretation is that hospital consolidation is associated with faster growth in hospital-reported charges in New York, and that the increase is not matched by a comparable rise in reported costs. The results do not tell an individual patient exactly what an insurer negotiated, what an employer plan paid, or how much deductible and coinsurance the patient owed.
For a specific bill, ask the hospital for an itemized statement, request the insurer’s explanation of benefits and compare the allowed amount with the billed charge. For policy analysis, the missing piece is public, transaction-level payment data; without it, charge trends are a warning signal rather than a complete account of household spending.
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Will my insurance bill rise by $9,008 after a hospital merger?
Not necessarily. The $9,008 figure is a study-wide estimate of additional hospital-reported charges in 2024 dollars, not a forecast of every negotiated claim or patient’s out-of-pocket liability. Your plan’s allowed amount, deductible, coinsurance and network rules determine what you actually pay.
Can a hospital merger ever reduce costs?
It can in principle, for example through shared purchasing or duplicated-service reductions, but this CSS analysis found no statistically significant overall cost change associated with merger status. The finding does not rule out savings at a particular hospital or for a specific service.
Where can policymakers get better evidence on hospital prices?
A publicly released New York All-Payer Database would allow comparisons of negotiated payments across insurers and hospitals. That information would complement SPARCS charge and cost data, which cannot show the final amount paid under private contracts.
Who reviews hospital mergers in New York?
The state’s Public Health and Health Planning Council reviews hospital ownership changes and mergers. CSS recommends adding explicit post-merger price commitments to that oversight rather than relying only on approval before a transaction closes.
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