Posted in Healthcare Integration

Every large health system in the United States now describes itself as integrated. The word has stopped carrying information, which makes the specific integrated healthcare delivery system examples below more useful than any definition. Each one shows a different structure, a different route to accountability, and a different set of results it can prove.

If you are assessing a potential partner, an employer contract or the organization you already work in, the useful question is not whether it uses the word. It is which of the three routes below it took, and what that route leaves unsolved.

What Makes a Healthcare Delivery System Integrated?

An integrated healthcare delivery system connects different parts of care so they operate with shared responsibility for patients, outcomes, and costs. Depending on the model, that can include hospitals, physician groups, outpatient services, health plans, and other care settings working under the same organization or through formal agreements.

The structure can take different forms. Horizontal integration brings similar organizations together, such as multiple hospitals within one system. Vertical integration connects different levels of care, such as hospitals, physician practices, outpatient services, and insurance. Other models use contracts rather than common ownership to create shared accountability. These differences matter because they determine how much control a system has over care coordination, patient data, clinical processes, and financial risk.

Three Routes to Integration

The examples divide cleanly by mechanism, and the mechanism predicts what the organization can and cannot do.

Ownership

One legal parent owns the hospitals, employs or exclusively contracts the physicians, and in the strongest cases owns the health plan. This is the most complete form and the most expensive to assemble. It is also the slowest to show results, because buying a practice changes the org chart on day one and changes clinical behavior years later, if at all.

Contract

Independent providers who share no owner accept collective accountability for a population through a shared savings agreement. This reaches rural practices and physician groups that intend to stay independent, and it can be exited in a way a merger cannot. The same reversibility is its weakness: nothing stops a participant leaving at renewal and taking its attributed patients with it.

Clinical model

A structured care design an organization implements internally. It is not a system and it creates no accountability for cost. It is what the systems above run on, and an organization that has skipped it tends to own a great deal and coordinate very little.

Integrated Healthcare Delivery System Examples

Below are some real world integrated healthcare delivery system examples worked around on different models:

1. Kaiser Permanente: the three-entity model

Kaiser Permanente founded in 1945 by surgeon Sidney Garfield and industrialist Henry Kaiser, it runs on three linked entities: Kaiser Foundation Health Plan, the nonprofit insurer that collects prepaid dues; Kaiser Foundation Hospitals, which owns the facilities; and eight independent, physician-owned Permanente Medical Groups that contract exclusively with the health plan.

The structural detail that matters is that physicians are salaried inside multispecialty groups, which removes the incentive to maximize volume. As of 30 June 2026 Kaiser Permanente served 12.9 million members through 40 hospitals and 610 medical offices, with roughly 25,270 physicians and about 225,854 employees, figures that exclude Risant Health and its affiliates. Counting Risant, the combined organization reported 127.7 billion dollars in operating revenue for 2025, net income of 9.3 billion and an operating margin of 1.1 percent across 13.1 million members .

What the structure demonstrably enables: a Kaiser Permanente Northern California hypertension program raised blood pressure control among hypertensive members from 43.6 percent in 2001 to 80.4 percent in 2009, against a national rise from 55.4 to 64.1 percent over the same period, and reported control near 87 percent by 2011. That program needed a registry covering every hypertensive member, one medication protocol applied across all facilities, and a nurse visit type that generates no professional fee. All three are difficult to fund anywhere but inside this structure.

2. Veterans Health Administration: integration by appropriation

The Veterans Health Administration represents one of the most structurally integrated healthcare systems in the United States. The federal government owns the facilities, employs clinicians, and funds care through congressional appropriations rather than traditional payer-provider claims. The VHA operates 1,380 healthcare facilities and serves more than 9.1 million enrolled veterans with over 371,000 staff.

Its electronic health record modernization also demonstrates that organizational integration does not automatically create technical integration. A December 2025 GAO report found only six VA medical centers live on the Oracle Health federal EHR at the time, against a long-term target of roughly 170 sites. Deployments resumed in 2026, but the rollout illustrates how legacy systems, local configurations, and differences in clinical processes can complicate technology standardization even within a single healthcare organization

3. Geisinger: integration proved through warranties

Geisinger combines hospitals, a health plan, research, and medical education within the same health system. Its ProvenCare program, introduced in 2006 for elective coronary bypass surgery, bundled preoperative care, surgery, and 90 days of follow-up into one defined episode. Protocol compliance increased from 59% to 100%, while complications, readmissions, and length of stay declined.

The significance lies in the operating model behind those results. Geisinger could standardize care across the entire episode because clinical delivery and financial responsibility were closely aligned. That made it possible to enforce common protocols, track outcomes across settings, and manage the consequences of complications beyond an individual procedure. Geisinger joined Risant Health in March 2024, extending this integrated model within a larger nonprofit health system structure.

4. Intermountain Health: where the revenue split proves the model

Intermountain Health operates 33 hospitals and roughly 400 clinics across six states alongside Select Health, its insurance business. This combination places healthcare delivery and a significant portion of financing within the same organization, creating direct financial exposure to both the cost and outcomes of patient care.

Its 2025 financial results illustrate the model clearly. Intermountain reported $18.5 billion in operating revenue, including $11.1 billion in patient service revenue and $6.4 billion from premiums and capitation. Because a substantial share of revenue comes from managing covered populations rather than individual procedures, the organization has stronger incentives to coordinate care, control avoidable utilization, and use clinical and financial information across the system.

5. UPMC: the academic payer-provider hybrid

UPMC combines a large academic healthcare system with a full-line insurance business. In 2025, it reported $33.6 billion in operating revenue and more than 4 million health plan members, while operating more than 40 hospitals and 800 outpatient locations.

Its structure shows that payer-provider integration changes how risk is managed rather than eliminating it. UPMC reported a 0.9% operating margin in 2025, while its UPMC for Life Medicare Advantage plans earned 4.5 out of 5 CMS stars for 2026. Performance therefore depends on coordination between insurance operations, clinicians, patient data, quality programs, and care delivery rather than ownership alone.

6. Medicare: integration bought by contract

Medicare is not an integrated delivery system itself, but its accountable care organization programs show how integration can be created contractually without common ownership. ACOs connect otherwise independent hospitals, physician groups, and other providers around shared quality, cost, and population-health objectives.

As of January 2026, the Medicare Shared Savings Program included 511 ACOs covering 12.6 million traditional Medicare beneficiaries and more than 700,000 participating providers and organizations. In the 2024 performance year, the program generated $4.1 billion in shared savings and $2.5 billion in net savings for Medicare. The model demonstrates an important distinction: contracts can align incentives and encourage coordinated care, but they provide less operational control than integration through common ownership.

Comparing the Models

System	Route	Owns a health plan	Scale	Fiscal year
Kaiser Permanente	Ownership, exclusive medical groups	Yes, 12.9M members	40 hospitals, 610 offices	2026
Veterans Health Administration	Federal ownership and appropriation	No payer exists	1,380 facilities, 9.1M enrolled	2025-26
Geisinger	Ownership	Yes, Geisinger Health Plan	10 hospital campuses, 1M+ served	2025-26
Intermountain Health	Ownership	Yes, Select Health	33 hospitals, ~400 clinics	2025
UPMC	Ownership, academic IDFS	Yes, 4.02M members	40+ hospitals, 800 sites	2025
Medicare ACOs	Contract	Medicare is the payer	511 MSSP ACOs, 12.6M aligned	2026

Examples of Integrated Health Services Within These Systems

Integration at the organizational level means little unless it shows up in specific service lines. The clearest examples of integrated health services inside the systems above follow a consistent pattern: a service that used to sit outside the primary care relationship is pulled inside it and made accountable to the same team.

Behavioral health is the most common. Rather than referring a patient out and losing track of them, an integrated organization places behavioral health clinicians inside primary care, shares the record, and treats the referral as a warm handoff within one team. The marker to check is whether the behavioral health clinician documents in the same chart the primary care physician opens, not whether the two organizations have a referral agreement.

Pharmacy integration works the same way. When the dispensing pharmacy sits inside the system, medication reconciliation after discharge becomes an internal process rather than a request sent to an organization with no obligation to respond.

Care management for high-risk populations is the third. Systems carrying insurance risk staff care managers against their own attributed population, because the cost of an avoidable admission lands on their own accounts.

Post-acute coordination is the hardest and the most revealing. Whether a system owns or contracts its skilled nursing and home health capacity determines whether the 30 days after discharge are managed or merely hoped for. Ask any system claiming integration how it learns that one of its patients has been admitted to a skilled nursing facility it does not own, and how long that takes.

Integrate Your Health Systems with Folio3 Digital Health

Integrated healthcare systems depend on connected data, coordinated care, and reliable information exchange across hospitals, physician groups, third-party applications, medical devices, and legacy platforms. That makes interoperability a critical part of building a healthcare delivery system that can operate as one connected environment.

Folio3 Digital Health supports this through healthcare interoperability and Epic Integration Services, using FHIR-based integrations, reusable connectors, custom solutions and integration components to connect clinical systems while reducing development effort, implementation time, and overall integration costs.

Frequently Asked Questions

1. How does an integrated delivery network differ from an integrated delivery system?

In practice they are used interchangeably, and no standards body defines a distinction. Where writers separate them, integrated delivery network implies common ownership and integrated delivery system implies coordination across the care continuum.

2. How is an accountable care organization different from an integrated delivery system?

An integrated delivery system is an ownership structure. An ACO is a contractual and financial accountability arrangement that pursues the same coordination goals without common ownership. Federal definitions are explicit that ACO participation alone does not make a group of providers a health system.

3. Which US health system is the most completely integrated?

By structure, the Veterans Health Administration, because the federal government owns the facilities, employs the clinicians and funds care through appropriation rather than claims. Among non-federal systems, Kaiser Permanente’s combination of an owned health plan, owned hospitals and exclusive salaried medical groups is the most complete.

4. Does owning a health plan make a system integrated?

It is the strongest single indicator but not sufficient on its own. A system can own an insurer and still run its hospitals, physician groups and plan as separate businesses. The test is whether clinical decisions and coverage decisions are made against one set of accounts.

5. How long does it take an acquired hospital to operate as part of an integrated system?

Longer than the financial close suggests. Contracting and reporting typically align within a year. A shared record, common clinical protocols and a single population health denominator commonly take three to five years, and the VA’s experience shows common ownership alone does not shorten it.

6. How does a clinically integrated network fit alongside these models?

A clinically integrated network lets independent, competing providers coordinate clinically and contract jointly without merging. It is the route to coordination for organizations that want the clinical benefits without balance-sheet consolidation.

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