Executive Team


Don Pfeffer
President and CEO


As president and chief executive officer, Don is responsible for managing the company's overall direction, market strategy and business development.

Don, a lifelong entrepreneur, previously took a healthcare accounting services startup comprised of five employees, one customer and no revenues to 35 employees, 15 clients and $2 million in annual revenue in two years. Prior to this, he spent 13 years working for Storage Technology Corporation.

Don received his bachelor's degree from Ohio University and his MBA from the University of Phoenix.


Ceil Cunningham
Director of Client Relations


As director of client relations for Accurate Reimbursement Solutions, Ceil Cunningham manages the company's day-to-day direction, activities and client relations. A valuable member of the Accurate Reimbursement team since its inception in July 1996, she brings more than 30 years of experience in healthcare receivables, insurance claims and auditing.

Over the years, Ceil has worked for various insurance companies and healthcare-related businesses, excelling in a number of roles, from claims office manager to auditor. Throughout her career, she has achieved success by focusing on helping clients define areas where they can make a substantial impact on the bottom line. As a result of her demonstrated skills and dedication, Ceil has helped recover millions of dollars on behalf of her healthcare clients.


Daria Nix
Project Manager


As project manager, Daria Nix oversees Accurate Reimbursement's client projects and manages the team and daily activities for these relationships. She has been with the company since 1998 and brings nearly 30 years of experience in the insurance and health care industries.

Daria came to Accurate Reimbursement Solutions from Exempla Health Care, where she served as a specialist in the Denver operation's Special Projects division. While with Exempla, she also worked as a supervisor in the customer service department. Prior to this, she spent 13 years in the insurance department at The Adolph Coors Company. Over the years, she has led her clients and employers to success through her mastery of the insurance field and its role in health care patient accounts.





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