Part of the Citation Share Report: The Hospitals & Health Systems Audit index.
Cleveland Clinic ranks #2 in the Citation Share Report: The Hospitals & Health Systems Audit, with a Citation Share Index score of 96 on a 0-100 scale. The ranking places Cleveland Clinic just behind Mayo Clinic, which leads the index with a score of 100, and ahead of Johns Hopkins at #3 with 92. According to the index, Cleveland Clinic holds its position as one of the original Honor Roll heavyweights that retain citation share through brand premium.
What the Hospitals & Health Systems Audit Measures
The Citation Share Report: The Hospitals & Health Systems Audit evaluated 25 US hospitals selected based on inclusion in the 2025-2026 US News Best Hospitals Honor Roll, plus four leading specialty institutions (MSK, MD Anderson, Boston Children's, CHOP) and Vanderbilt. Researchers ran 60+ healthcare prompts across six categories through ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews, and modeled a directional Citation Share from cross-engine knowledge synthesis with primary-source verification, using the EPR Citation Share five-component formula. Honor Roll status was verified against US News Best Hospitals 2025-2026, released July 29, 2025.
The index draws on retrieval anchors including US News & World Report Best Hospitals, Newsweek World's Best Hospitals, Healthgrades, Wikipedia, the Leapfrog Hospital Safety Grade, NIH funding databases, Becker's Hospital Review, Modern Healthcare, NYT Health, STAT News, NPR Health, CMS Hospital Compare, Castle Connolly Top Doctors, the NCI-Designated Cancer Center list, and each hospital's own .edu, .org, and .com properties.
Why Cleveland Clinic Ranks #2
Cleveland Clinic's score of 96 reflects its standing as one of the original Honor Roll heavyweights that holds citation share through brand premium. The index groups Cleveland Clinic with Mayo Clinic, Johns Hopkins, Massachusetts General, UCLA, UCSF, and NewYork-Presbyterian as the cohort commanding 60%+ of all "best hospital" citation share, despite US News alphabetizing the Honor Roll.
The index also identifies Cleveland Clinic as part of the "original Big Four" most entrenched on ChatGPT. Among the five engines tested, ChatGPT anchors to brand premium and Wikipedia, an anchor pattern that aligns with the entrenched position the index attributes to Cleveland Clinic.
Cleveland Clinic's citation share is grounded in Honor Roll status, verified against US News Best Hospitals 2025-2026. That anchor carries weight in the index because US News retains overwhelming dominance among retrieval anchors, and Perplexity is heavily US News-anchored while Google AI Overviews is the most US News-driven.
How Institutional Sources Shape Cleveland Clinic's Position
The index notes that institutional medicine sources, naming Mayo, Cleveland Clinic, and Hopkins, are weighted against experiential community sources such as Reddit, Healthline, and patient forums. According to the index, AI increasingly favors the institutional answer for high-stakes prompts, a pattern that positions institutional sources including Cleveland Clinic to hold citation share on those queries.
Cleveland Clinic's owned-content presence spans its Health Library, which includes sections on Body Systems and Organs, Diseases and Conditions, Treatments, Procedures, Drugs, Devices and Supplements, Diagnostics and Testing, and Symptoms. The index identifies weak owned-content libraries and condition-explainer content depth as factors that separate hospitals on the leaderboard: no named-specialty leadership, weak owned-content libraries, geographic asymmetry away from major coastal media markets, and no Newsweek dual-anchoring are the four shared weaknesses the index says drive low citation share at the bottom of the leaderboard.
Cleveland Clinic operates 300+ locations, with sites in Ohio, Florida, and Nevada, and international operations including Cleveland Clinic Abu Dhabi, Cleveland Clinic Canada, and Cleveland Clinic London. Cleveland Clinic describes itself as a non-profit academic medical center that provides clinical and hospital care and is a leader in research, education, and health information.
Where Cleveland Clinic Sits in the Broader Hospitals Story
The index calls out five signals that move citation share: US News specialty ranking elevation, named-physician programs, condition-explainer content depth, Newsweek global ranking inclusion, and NIH/NCI designation surfacing. Cleveland Clinic's position at #2 sits within the group of original Honor Roll heavyweights that command 60%+ of all "best hospital" citation share.
The index also observes that new Honor Roll entrants (AdventHealth Orlando, Hackensack, University of Michigan) enter the citation share map at the bottom of the leaderboard despite their elevation, reflecting the multi-year time horizon required to build hospital citation share. That time horizon underscores the entrenched standing the index attributes to Cleveland Clinic among the original heavyweights.
With a Citation Share Index score of 96 and a position among the original Honor Roll heavyweights, Cleveland Clinic enters the next refresh anchored to US News Honor Roll status, institutional-source weighting, and entrenchment on ChatGPT. The index frames hospital citation share as built over a multi-year time horizon, positioning Cleveland Clinic's standing as durable heading forward.
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