LunaBill

LunaBill, based in the US, specializes in automating accounts receivable processes within the healthcare sector, enhancing insurance communications through AI-driven voice agents to streamline operations. LunaBill is a company focused on automating insurance communications for healthcare providers. Founded in 2025, its headquarters are located in San Francisco, US. The company was established by David Day, Suhail Parry, and Yash Thakur.

On November 18, 2025, LunaBill raised SEED funding from Y Combinator and Pioneer Fund to support its future growth plans. The total number of deals conducted by the firm stands at 1. LunaBill offers an innovative solution designed to automate accounts receivable (AR) processes within the healthcare sector, primarily focusing on streamlining insurance communications through AI-powered voice agents. The core service automates tedious insurance calls, specifically addressing claim status inquiries, accounts receivable recovery, and appeal follow-ups.

By leveraging artificial intelligence, LunaBill’s voice agents efficiently navigate complex phone menus, gather detailed information regarding claims, and can even initiate claim reprocessing and escalate appeals during the call. The service is tailored for healthcare providers and practices utilizing electronic health records (EHR) or practice management (PM) systems across various geographical markets, including the United States and Canada. The end users include medical billing teams and healthcare practitioners who aim to improve operational efficiency and revenue recovery without altering existing workflows. LunaBill generates revenue through a subscription-based model, where healthcare practices pay to utilize the automated calling services for their insurance claims management.

Clients upload claim information in an Excel or CSV format, which the AI then uses to conduct calls on their behalf, simplifying the follow-up process. The company is positioned to recover significant amounts for its clients, with reported figures indicating the recovery of over USD 32 mn in revenue monthly and automation of more than 50,000 insurance calls. By providing seamless integration with existing EHR and PM systems, LunaBill ensures that practices can easily adopt its services with no workflow disruptions, contributing to a value-driven transaction structure that enhances overall profitability for its clients. In November 2025, LunaBill raised SEED funding to accelerate its growth initiatives.

The company plans to expand its offerings by developing new products aimed at enhancing the automation of insurance claim processes. It is also targeting expansion into additional markets, including Europe and Australia, by mid-2026. The recent funding will support these developments, enabling LunaBill to enhance its technology and operational capabilities.