Leona Health builds an AI-powered mobile app that integrates directly with physicians’ existing WhatsApp numbers, automatically categorizing incoming patient messages, suggesting responses, and enabling care-team members to reply on the doctor’s behalf. Its algorithm highlights urgent clinical issues first while deprioritizing routine or administrative requests, and the company plans to launch a fully autonomous agent to handle scheduling and simple intake. The service is already live in 14 Latin American countries and spans 22 medical specialties, with doctors reporting time savings of two to three hours per day. Patients continue using WhatsApp, preserving a familiar workflow while relieving physicians of after-hours message overload. The 13-person team is split between Mexico City and Silicon Valley, combining regional market insight with top AI engineering talent. Founded two years ago by former Uber Eats and Rappi executive Caroline Merin, Leona ultimately intends to expand its solution to other regions where WhatsApp is the primary channel for doctor-patient communication. The company has raised $14 million in seed funding to accelerate product development and geographic expansion.

Total raised

$14M

Funding rounds

1

Latest round

Seed

Latest activity

Dec 2025