OpenEvidence vs athenahealth
Side-by-side comparison of AI visibility scores, market position, and capabilities
OpenEvidence hit $100M+ ARR in under a year serving 430K+ US physicians (40% of all US doctors) at $12B valuation ($700M raised); fastest-growing physician AI platform, founded 2022 Miami.
About
OpenEvidence is an AI clinical evidence platform founded in 2022 and headquartered in Miami, Florida. Built specifically for physicians, the platform applies large language models trained on peer-reviewed medical literature to deliver instant, evidence-backed answers to clinical questions at the point of care. Its founding mission is to democratize access to the best available medical evidence so that every physician can practice at the highest standard, regardless of institution or specialty.\n\nThe platform aggregates and synthesizes peer-reviewed studies, clinical guidelines, and drug databases, presenting structured answers with citations that meet physician-grade accuracy standards. Unlike general-purpose AI assistants, OpenEvidence is purpose-built for clinical workflows. It is free to use for physicians, with monetization routed through pharmaceutical and healthcare industry partners who value the platform's direct access to practicing clinicians.\n\nOpenEvidence has achieved remarkable traction, reaching over 430,000 US physicians — approximately 40% of the entire US physician population — making it the fastest-growing physician AI platform on record. The company crossed $100M ARR in under a year from launch and earned a $12 billion valuation on $700 million in total funding. This trajectory places OpenEvidence among the fastest-scaling healthcare AI companies globally and signals a structural shift toward AI-assisted clinical decision-making at the point of care.
$1.7B annual revenue; 160K+ providers, 117M patients; 18.15% EHR market share; 6,713+ companies using 2025; acquired by Bain Capital & Hellman & Friedman Nov 2021 at $17B; AI interoperability 2025
About
athenahealth is a cloud-based electronic health records (EHR), medical billing, and practice management company founded in 1997 and headquartered in Watertown, Massachusetts. The company was built on the principle that healthcare administration should be managed as a service — with athenahealth absorbing the complexity of payer rule updates, regulatory compliance, and billing workflows so that physicians and clinical staff can focus entirely on patient care. Its cloud-native architecture, deployed before most EHR competitors moved to the cloud, remains a core technical differentiator.\n\nathenahealth's platform — athenaOne — integrates EHR, revenue cycle management, patient engagement, and care coordination in a single system used by over 160,000 providers across 117 million patient records. The company serves ambulatory practices ranging from solo physicians to large health systems and medical groups. Its continuously updated rules engine processes millions of payer transactions daily, enabling higher clean claim rates and faster reimbursement compared to on-premise EHR alternatives. athenahealth holds an 18.15% share of the US ambulatory EHR market.\n\nathenahealth is currently owned by a private equity consortium of Bain Capital and Hellman & Friedman, which acquired the company in 2019 for $5.7 billion. Annual revenue stands at approximately $1.7 billion. The company competes with Epic, eClinicalWorks, and Oracle Health in the ambulatory EHR market. Its managed-service model, shared payer network data, and cloud-native infrastructure continue to make it a compelling choice for ambulatory providers who prioritize revenue cycle performance and reduced administrative burden.
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