Coordinated and Integrated Care Models

When a patient manages Type 2 diabetes alongside congestive heart failure and clinical depression, three separate specialists might be generating three separate treatment plans — with zero awareness of each other's decisions. Coordinated and integrated care models exist specifically to prevent that kind of fragmentation. This page covers how those models are defined, how they operate mechanically, where they appear in practice, and what distinguishes one approach from another.

Definition and scope

Coordination and integration are related but distinct concepts in health system design, and the difference matters more than it might first appear.

Care coordination refers to the deliberate organization of patient care activities and information-sharing across multiple participants — primary care physicians, specialists, pharmacists, social workers — so that the patient's needs are met across settings and over time. The Agency for Healthcare Research and Quality (AHRQ) defines care coordination as "deliberately organizing patient care activities and sharing information among all of the participants concerned with a patient's care to achieve safer and more effective care."

Integrated care goes further. It describes structural arrangements where financing, administration, and clinical delivery are unified — not just coordinated — into a single system. The World Health Organization describes integrated care as services that are "managed and delivered so that people receive a continuum of health promotion, disease prevention, diagnosis, treatment, disease-management, rehabilitation and palliative care services."

The scope of these models spans primary care, specialty care, mental health services, and long-term care — sometimes simultaneously. Federal regulatory interest in these structures is reflected in programs administered by the Centers for Medicare & Medicaid Services (CMS), particularly through the Center for Medicare and Medicaid Innovation (CMMI), which has tested over 50 payment and delivery models since its creation under the Affordable Care Act.

How it works

The operational architecture of coordinated and integrated care typically involves four discrete components:

1. Shared information infrastructure — Electronic health records (EHRs) that allow every treating clinician to view a patient's complete medication list, diagnosis history, and care plan. Interoperability standards like HL7 FHIR (Fast Healthcare Interoperability Resources) govern how those records move between systems.

2. Designated care coordination roles — A named individual, often a registered nurse or social worker functioning as a care manager or patient navigator, who tracks the patient across encounters, flags gaps in follow-up, and manages transitions between care settings.

3. Structured communication protocols — Defined handoff procedures when a patient moves from hospital to home, or from emergency department to outpatient specialist. The Joint Commission's National Patient Safety Goals include explicit requirements for standardized handoff communication (Joint Commission NPSG.02.05.01).

4. Aligned financial incentives — Payment structures that reward outcomes rather than volume. Accountable Care Organizations (ACOs), bundled payment arrangements, and capitated managed care contracts are the primary vehicles. Under the Medicare Shared Savings Program (MSSP), ACOs that reduce spending below a benchmark while meeting quality thresholds retain a portion of those savings, as governed by 42 CFR Part 425.

Common scenarios

The most visible application of integrated care is the Patient-Centered Medical Home (PCMH) model, recognized by the National Committee for Quality Assurance (NCQA). A PCMH designates a primary care practice as the hub of all care coordination — referrals flow through it, records return to it, and care managers embedded within the practice proactively contact patients with chronic conditions between appointments.

A second common structure is the Accountable Care Organization, which links a defined network of providers — hospitals, physician groups, post-acute facilities — under shared accountability for a population of at least 5,000 Medicare beneficiaries (the MSSP minimum threshold). The network is not a merged institution; it is a contractual alignment around shared performance data.

For patients with concurrent medical and behavioral health needs, co-located or collaborative care models place mental health clinicians inside primary care settings. The collaborative care model, developed at the University of Washington and studied extensively in the IMPACT trial, demonstrated that structured depression care management in primary care settings produces measurably better outcomes than referral-based approaches — relevant context for anyone navigating mental health medical services within a broader care plan.

Home health services represent a third scenario where care coordination becomes structurally critical: the patient has left the hospital, the primary care physician may not have received a discharge summary, and the home health nurse is the only clinician with direct observation of the patient's functional status.

Decision boundaries

The choice between a coordination-only approach and a fully integrated model turns on three variables: population complexity, payer mix, and organizational capacity.

Coordination-only mechanisms — shared care plans, care managers, structured referrals — are accessible to independent practices and work adequately for lower-acuity populations with stable insurance coverage. Full integration, by contrast, requires capital investment in technology infrastructure, legal restructuring of provider relationships, and often a contracting relationship with a payer willing to accept risk-based payment.

Regulatory compliance requirements shift depending on the model's depth. Practices pursuing NCQA's PCMH recognition must demonstrate performance across six standards, including access, care management, and care coordination and care transitions. ACOs operating under MSSP must meet 23 quality measures tied to Medicare coverage and reported through CMS's web interface.

A useful contrast: a coordinated care arrangement improves information flow without changing who owns the financial risk. An integrated care model changes both. Understanding that distinction clarifies why two systems that look similar from the outside — both involving shared records and team-based care — can differ fundamentally in their accountability structures, their billing and coding requirements, and ultimately their durability when the underlying economics shift.