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Charta Health
Charta Health is a San Francisco AI startup building a pre-bill chart review platform that reads every patient encounter, catches coding mistakes and missed revenue, and flags compliance risks before claims go out the door. Founded in 2023 by two ex-Rockset engineers who got themselves certified as medical coders, the company raised a $22M Series A in 2025 led by Bain Capital Ventures.
Justin Liu
Justin Liu is the Co-Founder and CEO of Charta Health, a San Francisco-based AI healthcare operations company that automates medical chart review and billing/coding workflows. Having previously led growth at Rockset (acquired by OpenAI in 2024), Liu pivoted to healthcare, earning a Certified Professional Coder credential alongside his co-founder before raising over $30M to back their mission of making healthcare more affordable through AI. Charta Health's platform enables hospitals and health systems to review 100% of charts pre-billing, delivering an average 11% revenue uplift per chart.