Oncel Ozgul is Co-Founder and CEO of Patientdesk.ai, a Y Combinator-backed AI voice agent platform transforming patient intake for dental practices. The company raised $1M in pre-seed funding led by Y Combinator and E2VC in February 2026.

Before Patientdesk, Oncel co-founded ESO Marketing Automations, a dental marketing agency operating in the UAE and Australia, where he built experience with healthcare workflows and front desk operations. He spent years working directly with clinics, building workflows, training front desk teams, and operating a call center.

Oncel and his team pioneered the first system that verifies insurance live during patient calls within seconds, a breakthrough that helps clinics confirm coverage immediately. Patientdesk is live in over 60 clinics across the US, Australia, and UK, with one customer generating $350,000 in December 2025 from Patientdesk-managed bookings.

Patientdesk is part of the Y Combinator W26 batch and has secured partnerships with three major practice management systems. The company has been invited to exhibit at the world's largest dental fairs including ADX, demonstrating rapid market traction.

The platform handles the full patient intake flow including answering calls, booking appointments, verifying insurance in real time, and managing payments 24/7. Patientdesk has achieved a 340% increase in lead conversion rates for practices and ensures clinics never miss high-value appointment opportunities.