Definition

Integrated Delivery Network (IDN)

An integrated delivery network (IDN) is a health system that owns or coordinates care across the continuum, typically hospitals, physician groups, outpatient and post-acute services and sometimes a health plan, and manages contracting and purchasing centrally.

2 min readReviewed September 14, 2026

Also known as: Integrated delivery system, IDS, Integrated health system, Organized delivery system

What is an integrated delivery network?

IDN is mainly an industry term used by pharmaceutical, medical device and supply chain companies to describe large health systems that behave as one customer. It overlaps heavily with health system, and many people use the two interchangeably. The emphasis in IDN is integration: shared governance, clinical protocols, contracting and purchasing across many sites of care.

Some IDNs also own a health plan and bear insurance risk for their members. These payer-provider organizations have strong incentives to manage the total cost of care, which shapes how they evaluate drugs and devices.

There is no legal or regulatory definition of an IDN and no official list, so which organizations count as IDNs depends on the analyst.

How IDNs make decisions

Commercial teams map several centralized functions inside an IDN:

  • A system pharmacy and therapeutics (P&T) committee that sets a formulary for member hospitals and often for outpatient infusion sites.
  • Value analysis committees that evaluate devices and supplies on clinical evidence and cost before purchase.
  • Supply chain and contracting teams, usually working with one or more group purchasing organizations (GPOs).
  • Service line leaders, such as cardiovascular or oncology chiefs, who standardize protocols and product choices across sites.
  • Population health teams that manage accountable care organization and other risk-based contracts.

Why IDNs matter

IDNs concentrate buying power and clinical standardization:

  • Pharma and medtech key account management is organized around IDNs because one formulary or contract decision can apply to dozens of hospitals and hundreds of physicians.
  • Mapping affiliated physicians to their IDN shows which prescribers are subject to system protocols, order sets and formulary restrictions.
  • IDNs with their own health plans can move quickly on value-based and outcomes-based agreements.
  • Data teams must reconcile IDN hierarchies across hospitals, practices, NPIs and 340B covered entity records, since no public identifier links them all.

IDN vs health system vs GPO

A health system is the broad ownership concept. An IDN is a health system viewed as an integrated buying and care management unit. A group purchasing organization is different again: it negotiates supply and drug contracts on behalf of many unrelated hospitals and IDNs but does not deliver care.

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