ChartLink: Intelligent Patient Search with Band.AI

US healthcare has no national patient ID, so a person's records scatter across hospitals, clinics, pharmacies, billing, parking, and patient apps that don't talk to each other. The usual fix — consolidating everything into one database — is expensive, perpetual, and a privacy liability. And a single typo or name change makes a traditional lookup miss entirely. ChartLink takes the opposite approach: don't move the data, connect it. It puts one specialist AI agent on each system, and a Registrar agent coordinates them through Band in synchronized rounds — fanning out a search, gathering what each system finds, corroborating the candidate that agrees across systems, and broadcasting every new clue so the others can confirm. Records are reasoned together, not pattern-matched, so nicknames, typos, accents, and name changes don't break the match. Nothing is copied, stored, or centralized — and every cross-system access is a Band transcript inside a private, per-patient room, giving compliance a built-in audit trail.