Healthcare AEO Benchmarks 2026: AI Overviews Now Cover 48.7% of All Queries
Healthcare brands face a widening AI visibility gap: AI Overviews appear on 48.7% of all Google healthcare queries — the highest rate of any industry — yet AI referral traffic accounts for just 0.64% of total healthcare website visits today. Conductor’s 2026 benchmark report analyzed 3.3 billion sessions and 17 million AI-generated responses, finding ChatGPT drives 83.8% of AI referrals in healthcare; Perplexity accounts for 7.8%, Copilot 4.7%, and Gemini 2.8%. Citation leaders in the health equipment and services subindustry are mayoclinic.org (6.58% citation share) and clevelandclinic.org (4.90%) — both built on structured, expert-reviewed content libraries. News articles are the most-cited page type in healthcare AIOs (46,000+ pages), followed by blog content (36,000+). The implication: AI visibility is a parallel performance channel separate from traditional SEO ranking.
Healthcare brands optimizing only for traditional search rank are already invisible in nearly half of Google queries. These benchmarks reveal which content types and authority signals AI systems use to select citations — a practical roadmap for DSO, MSO, and multi-site operators building AEO-ready content strategies.
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