Medical Billing Management Team

Meet The Medical Billing Services Experts

Trust. Mutual respect. That’s what you should feel about your medical billing partner. You want one that exhibits expertise, intelligence and, yes, a little humility while it delivers security, support and profitability. You want one that understands that each practice is unique, having its own set of strengths and symptoms. And you want one that knows how to get at the simple and fundamental question: How can you be sure that your practice is operating as efficiently and profitably as possible? Together, you and your CRT Medical Systems will find it.

David Doyle, Chief Executive Officer

A lifelong Michigan resident, David Doyle founded CRT Medical Systems in 1981. CRT is a medical billing company that provides medical practices with fully integrated practice management and EMR software solutions customized for implementation, training and ongoing support. David brings experience from his early career as a lead programmer for many fortune 500 companies and governmental agencies, as well as, creating his own companies for IT staffing, programming and enterprise software sales.
CRT currently ranks as one of the top 100 largest billing companies in the United States, processing over $500 million in insurance claims for clients throughout Michigan and the Midwest. CRT’s 20,000 square foot data center in Novi, MI has enabled David and his team to develop and deploy state-of-the-art technology in that efficiently automates the processing and handling of medical claims, thereby enhancing physicians’ clinical practices.
David graduated from Ferris State University with a BS and AS degree in Computer Science.

John OGreen Billing

John R. O’Green, Chief Operating Officer | Back to Top

With over 20 years of executive-level experience in financial services, sales and marketing from internationally known organizations, John is a lightning rod for CRT Medical Systems. As COO of CRT, John uses his in-depth knowledge and skill to benefit clients in every aspect of their business. Local and global, innovative both strategically and tactically, his expertise proves an invaluable resource at every turn.
Past positions include 10+ years as President of Volkswagen of America’s North America Finance companies and, subsequently, head of North American business strategy and integration initiatives. During his time with VW, he and his team built a 10-year strategic milestone business model and marketing plan, integrated company-wide brand management and organizational design. He also formed and headed the President’s Council for North America, in addition to other achievements.
Over the years John also held executive positions with two of Michigan’s highly esteemed marketing firms, where he integrated brand-building marketing programs, product launches, event marketing, meetings, press events, video and film initiatives for Fortune 500 and Fortune 1000 clients.
Interestingly enough, not only did John receive a Bachelor of Arts, with Honors, from Michigan State University, but he went on to receive his Juris Doctor from the University of Detroit, School of Law.

Robert D. Burmeister, CPA, Chief Financial Officer | Back to Top

With over 25 years of experience as a CPA, Bob has supported CRT as the company’s Chief Financial Officer—a role that he has enjoyed for over ten years. In addition to his responsibilities as CFO, Bob assists our Full Management and Hybrid clients with metrics, ratios and reports for their practices; he has developed performance measurements for CRT’s Dedicated Account Specialists, which has improved the efficiency and accountability of that operation. Bob also works with outside consultants, CPA’s and accountants.
Bob is a graduate of the University of Michigan–Dearborn – 1983 and Ferris State University – 1980. He earned his Certified Public Accountant in 1985. He is a member of AICPA and MACPA. Bob’s previous work experience includes a partner in a public accounting firm and controllerships for Tier 2 Manufacturing Company and IT Staffing Organization. Bob has volunteered on various non-profit boards of directors during his career including 9 years as treasurer for two separate organizations.

Ray Deming Billing

Raymond Deming, General Operations Manager | Back to Top

Ray has been with CRT Medical Systems, Inc. since its inception in 1981. From Computer Operations to Customer Support and diagnostics, Ray has contributed to CRT’s growth and success, helping to develop key processes that enable CRT clients to maintain profitable practices.
Ray’s primary responsibilities include monitoring and reviewing CRT Medical Systems, Inc.’s full Management clients to make certain that CRT, Inc proactively addresses billing issues or problems. His unique ability to analyze and pin-point problems in billing submissions has made him a valuable member of the management team Ray’s number one priority is taking care of client. He is known as the “go to guy” and can be counted on to resolved problems efficiently.
Ray attended Wayne State University, studying Computer Science and Business Administration.

Kim Anderson Billing

Kim Anderson, Vice President of Client Services | Back to Top

Kim brings over 20 years of healthcare systems experience to CRT. Her expertise in healthcare and client support development provides a rich knowledge base by which she is better able to assess problems and provide solutions when working with clients. Prior to joining CRT, Kim had experience implementing EMR 10 years ago while at VantageMed. She has also worked for Ford Motor Company, University of Michigan Hospital, and Medical Software Solutions.
Kim’s experiences in various medical settings, her medical software knowledge along with her leadership skills have been a tremendous asset to CRT Medical Systems. She is responsible for the development of the implementation and support department at CRT. Her focus is on the customer, which facilitates a smooth transition when ordering, and implementing medical billing services. She is committed to developing and strengthening client relationships to provide first-rate support.
Kim has a Bachelor of Science from Central Michigan University.

Karen Metzler Billing

Karen Metzler, Vice President of Billing Services | Back to Top

Karen brings 25 years of medical billing experience to CRT. After completing a Bachelor of Science degree from Michigan State University, Karen began her career working in the lab environment and has held a variety of positions within the billing industry including several years working with the Rose Cancer Center at Beaumont Hospital. Karen was brought on board to work with CRT’s largest client team.
Her leadership and contribution on that team led her into billing management at CRT where she now oversees our Dedicated Account Specialists, Call Center and Patient Accounts. She is responsible for all CRT employees that are assigned to billing and closely monitors the performance, customer satisfaction and growth of all operations related to her team and our clients.
Karen has a Bachelor of Science degree from Michigan State University.

Eric Moler Billing

Eric Moler, IT Director | Back to Top

Eric Moler isn’t your typical IT guy; rather than dwelling in the frigid darkness of blade server rooms, he does quite the opposite. On a typical day, you will find Eric out there actively looking for problems to solve. He isn’t shy or insecure about sharing his knowledge either. CRT clients have come to
expect Eric to be accessible 24/7/365, and he does his best to meet those demands. It isn’t uncommon to see Eric on his way out of the office in the afternoon to help a new client and then return afterhours to offer co-workers help. He is responsible for installing, configuring and administering all CRT network infrastructure and telecommunications systems. CRT’s 65 local staff members and 350 remote users know Eric is never far if a problem arises.
In the truest nature of the Pirates of Silicone Valley, Eric looks for every opportunity to improve network and system operations to gain the edge on competitors. He has the energy and proven ability to manage multiple priorities while working with highly effective communication and collaboration skills, empowering internal staff and external customers alike to exceed expectations. Eric’s understanding of systems has enabled CRT to optimize every application to its fullest. Any discrepancies are quickly identified and reconciled, so things run well from the start.
Eric attended the University of Michigan – Dearborn School of Engineering from 1993-1996.


Jan Mastej Billing

Jan Mastej, Director of Human Resources | Back to Top

A key player in every company is the Director of Human Resources. That is especially true at CRT Medical Systems. Jan Mastej has been that key person for over five years at CRT. Her fifteen years of HR experience provide a solid basis for the fundamental relationships between CRT and its people. Jan’s spirit and enthusiasm are a big reason CRT is able to attract, motivate and retain quality and professional employees.
In addition to the usual benefits administration, talent scouting, hiring and orientation, labor law interpretation/application, as well as OCHA compliance training, Jan also assists CRT super groups clients with HR challenges. She is integral in adding value for clients by introducing intercompany cooperation.
With an MSBA and BSBA from Madonna University, Jan is a committed team player with superior communication and negotiation skills, and a proven ability to develop strong internal and external business relationships.

From the very beginning CRT has been fiercely independent. This independence allows CRT to push the envelope in deploying technology to improve the efficiency of medical practices.

-David Doyle, Founder and CEO