LunaBill - AI Voice Callers for Healthcare Billing Teams

Hello YC! We’re Suhail Parry, David Day, and Yash Raj from LunaBill.

TL;DR: We built AI voice agents that automate insurance calls for healthcare billing teams. Fine-tuned on a dataset of over 1.2M call transcripts, our voice agents can handle insurance calls regarding claim-status inquiries, A/R recovery, and appeals follow-up.

🚨 The Problem

Every week, U.S. healthcare billing teams make tens of millions of calls to insurance companies to get claims paid.
Each one averages 25 minutes. That’s how hospitals unlock part of the $260B in denied or delayed payments every year.

But there’s a bottleneck:

• Reps can only handle a few calls per hour.
• Staffing is expensive and hard to scale.
• Delays cost millions in unrecovered revenue.

Meanwhile, every new hospital system or insurer integration compounds the complexity.

💡 The Solution

LunaBill’s AI voice callers automate those phone conversations end-to-end.

Our voice agents:

• Handle claim status checks, appeals follow-ups, and reprocessing calls automatically.
• Connect to any billing software and dial claims that need to be worked.
• Run up to 100 concurrent agents per client, like having a 100-person call center on demand.
• Deliver post-call summaries with the to-do steps, integrated directly into workflows.

They’re fine-tuned on 1.2M+ real call transcripts, understand payer logic, and sound completely natural.
🎧 Listen to a real AI insurance call, see if you can guess who’s human.

⚡ Our Progress

To date, LunaBill has automated 60,000+ insurance calls, saving billing teams over 20,000 hours and recovering $30M+ in payments that would otherwise be lost.

Billers now can complete 300+ claim follow-ups per day — up from about 25/day before LunaBill, a ~12x productivity improvement.

LunaBill has partnered with top healthcare systems and three of the biggest enterprise billing companies across the country.

👥 About Us

• Suhail Parry (CEO) — 2x founder, led billing ops for 200+ clinics.
• David Day (CTO) — Former UCSF data scientist, founded Skiesoft, an AI medical scribe used by 120,000 clinicians.
• Yash Raj (COO) — Built AI consumer apps (10K+ users) and worked at Mayo Clinic on clinical AI research.

We first met at the Berkeley AI Hackathon, where we built an AI nurse. A few months later, we teamed up to tackle the biggest operational pain point we’d all lived through: insurance phone calls.

🤝 Our Ask

We’d love warm intros to:

• Hospital CFOs/CROs/revenue cycle leaders
• Billing / RCM partners
• YC startups selling to hospitals (EHRs, telehealth, marketplaces) for integrations or co-GTM

For inquiries, email us at founders@lunabill.com

Visit us at Lunabill.
Follow us on Linkedin 👉 LINK HERE

Thanks for the support!