Direct comparison
Top Healthcare GPOs Compared: Vizient & More
Compare the top US healthcare group purchasing organizations — Vizient, HealthTrust, and Premier — on ownership, member base, contracts, and lab coverage.
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Side-by-side comparison
| Dimension | Vizient | HealthTrust | Premier Inc. |
|---|---|---|---|
| Ownership / structure | Member-owned, not-for-profit cooperative. Formed in 2015-2016 from the merger of VHA Inc., University HealthSystem Consortium, and Novation; later added MedAssets (2016) and Intalere (merger completed 2021). | For-profit; majority owned by HCA Healthcare. Open to non-HCA members alongside HCA's own facilities. | Hybrid structure combining a member health-system alliance with a corporate performance-improvement company; confirm current corporate/ownership specifics directly with Premier, as this has changed over time. |
| Headquarters | Irving, Texas | Brentwood (Nashville area), Tennessee | Charlotte, North Carolina |
| Primary member base | Broadest US reach: academic medical centers, community hospitals, and integrated health systems. Widely described as the largest US healthcare GPO by contract volume. | HCA Healthcare's own hospital network plus other health systems, ambulatory, and post-acute providers that join as members. | Community and regional hospitals and health systems participating in the Premier alliance. |
| Contract portfolio breadth | Very broad: pharmacy, medical-surgical supplies, purchased services, and capital equipment, plus benchmarking and clinical-analytics services. | Deep in med-surg and pharmacy given HCA's scale; also covers purchased services and capital equipment. | Broad across pharmacy, med-surg, and purchased services; also offers supply-chain analytics and performance-improvement consulting alongside its GPO contracts. |
| Clinical lab & diagnostics coverage | Dedicated lab and diagnostics contracts within its broader clinical-supply categories. | Lab reagents and instrumentation included within broader medical-surgical and diagnostics contract categories. | Lab and diagnostics included within broader clinical-supply contract categories. |
| Fee model | Standard GPO administrative-fee model under the 42 CFR §1001.952(j) safe harbor: fee paid by participating vendors, not members. | Standard GPO administrative-fee model under the same federal safe harbor. | Standard GPO administrative-fee model under the same federal safe harbor. |
Common questions
FAQ
Do hospitals have to use a GPO?+
No. GPO membership is voluntary. Most US hospitals join at least one GPO because aggregated pricing is hard to match independently, but many large health systems also run parallel self-negotiated contracts for high-volume or physician-preference items.
Is Vizient the same organization as Intalere?+
Not anymore. Intalere (previously Amerinet) was an independent GPO that merged into Vizient, with the combination completed in 2021. A reference to Intalere today generally means a legacy contract or membership now administered by Vizient.
Can a clinical lab join a healthcare GPO directly?+
Independent and reference labs and physician-office labs can generally join, though eligibility and pricing tiers vary and are usually narrower than a full hospital membership. Labs that are part of a hospital or health system typically access GPO contracts through that parent organization's membership.
Do GPO contracts satisfy federal procurement requirements for grant-funded purchases?+
Sometimes, but this depends on the specific funding rule. Federally funded research procurement under the Uniform Guidance treats cooperative purchasing arrangements separately from healthcare GPOs — check 2 CFR 200.318(e) and confirm with your institution's grants office before assuming a healthcare GPO contract satisfies federal award terms.
Going deeper
