Athenahealth, a healthcare technology provider serving over 20% of the US population, has partnered with Anthropic to connect patient health records with Claude through a Model Context Protocol (MCP) compatible server named AthenaPatient MCP, which allows the AI model to gather information from health records and answer related questions. According to Athenahealth, the process is secure and requires patients to sign in with their account credentials. AthenaPatient MCP is available only to Claude Pro and Claude Max users, which cost $20 and $100 per month, respectively. Not all Athenahealth patients will have their data shared with Claude, and not all Claude Pro and Claude Max users must opt in; users must give Claude their authenticated Athenahealth credentials, can choose which health information Claude can access, and can revoke access at any time. Once authorized, Claude takes information such as lab results, vitals, medications, health conditions, immunizations, visit history, diagnostic reports, allergies, procedures, and care plans into account when answering questions. According to Sam Lambson, vice president of product management, data & ecosystem at Athenahealth, the partnership does not provide medical advice and should not replace a clinician's professional judgment or medical advice, and patients should contact a qualified healthcare professional with questions about diagnosis, treatment, or changes to their care.