Meet our leadership team committed to delivering excellence to each of our clients nationwide.

Dan O’Callaghan – Chief Executive Officer

Dan has been making headway in Healthcare Delivery Services since 1984. He has founded several healthcare companies and developed them into national organizations. Managed Resources and CodingAID were founded in 1992. He believes the major platform for success is quality service, accountability and client satisfaction.

Simon Zaman – President & Managing Partner

In 1976, Simon began his business career as an analyst in New York. Since then, he has held executive-level positions at Cedars Sinai Health System, Methodist Hospital and Roosevelt-St Luke’s. He specializes in finance, compliance, revenue integrity, process improvement and cost reduction implementations for healthcare delivery systems.

Kelly Yeargin – Managing Partner, Revenue Integrity Services

With over 18 years of experience in business management, Kelly oversees all aspects of our Revenue Integrity Teams. She draws her expertise from years in new business development, business analysis, and finance with an emphasis in creating long-term financial plans. She has a proven track record of providing effective consultation that has resulted in better business performance and client success.

Ryan McCormick – Managing Partner, CodingAID

Ryan entered the healthcare coding, recruitment and staffing support world in 2004. Before working at Managed Resources, he was a Business Manager and Sr. Analyst for Sony Pictures and MTV Networks. He also holds a B.S. in Business Administration, and an MBA and MA in Clinical Psychology from Pepperdine University. At Managed Resources, he ensures clients are provided with high quality and integrity-driven talent and staffing solutions.