Particle Health vs athenahealth
Side-by-side comparison of AI visibility scores, market position, and capabilities
Particle Health provides a health data exchange API enabling healthcare apps to access longitudinal patient records from national networks with a single integration.
About
Particle Health is a health data exchange company founded in 2018 that provides developers and healthcare companies with a single API to access patient clinical records from national health information networks including CommonWell, Carequality, and others. The company abstracts the complexity of connecting to dozens of regional health information exchanges and national networks behind a simple developer-friendly API, enabling healthcare applications to retrieve longitudinal patient records including medical history, lab results, diagnoses, and medications from any participating provider. Particle raised $60M and serves digital health companies, telehealth platforms, health plans, and healthcare analytics firms that need access to real-world patient data to power clinical decision support, care management, and value-based care programs. The company provides HIPAA-compliant data access with identity verification and purpose-of-treatment validation to ensure appropriate use of patient records. Particle's API approach reduces the time and cost for healthcare companies to build clinical data infrastructure from months of complex integrations to days of API implementation.
$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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