Citizen Health Raises $30M to Advance AI Advocate for Rare Disease Care

The company will launch its first AI Advocate this fall and expand hiring and partnerships to support patients with complex conditions.

Published on Aug. 18, 2025
A doctor sits at a desk wearing a white coat and stethoscope with a digital illustration featuring featuring a shield in the image foreground to represent healthtech and patient advocacy.
Image: Shutterstock
REVIEWED BY
Ashley Bowden | Aug 18, 2025

Citizen Health, a San Francisco-based healthtech startup, raised $30 million in Series A funding led by 8VC, bringing its total to $44 million since launching in December 2023. The company’s AI-powered platform primarily serves patients with rare and complex diseases.

The company is building an AI solution to help patients manage their care by interpreting medical records, tracking symptoms, connecting with peers and identifying next steps. Citizen Health ultimately wants to equip every patient with a personalized AI Advocate that can proactively identify and act on health improvement opportunities that patients themselves may not even anticipate.

Citizen Health plans to use the new funding to roll out the first version of its AI Advocate to select communities in the third quarter of 2025 and introduce a product tailored for patient advocacy groups. The company will also invest in hiring AI engineers, product builders and designers, while strengthening collaborations with pharmaceutical partners, policymakers and patient organizations.

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