Legion Health is a full-stack, AI-native telepsychiatry clinic founded in 2021 and backed by Y Combinator. The company provides psychiatric care - including medication management for conditions such as ADHD, anxiety, and depression - while using large language models to automate scheduling, billing, clinical decision support, and personalised follow-up. By hiring clinicians directly and holding insurance contracts, it has driven the cost of a visit to under $30.
The startup, whose founders met as Princeton roommates, began as a B2B staffing operation before pivoting to its current model. It has reached over $3 million in annual recurring revenue and currently operates in Texas. Its mission is to make high-quality psychiatric care accessible to everyone with insurance.
Technical work at Legion Health spans large language models, clinical decision support, workflow automation, and telepsychiatry infrastructure. The engineering team builds AI systems that sit at the centre of the clinic's operations, from intake through ongoing treatment management.






