Some people dream of success....while others wake up and work hard at it.



 Winston Churchill

Our Leadership Team


CEO, President

Barry J. Williams serves as our Chief Executive Officer and President and brings to the company more than 15 years of professional experience in the Oral & Maxillofacial and Medical industries. Barry holds a Bachelor’s Degree of Psychology from the University of Oklahoma. He currently speaks nationally about Oral and Maxillofacial Surgery topics such as Practice Transitions, Office Design, and Information Technology.


President of Practice Evolutions

Dave Hibbard, President of Practice Evolutions brings to the company more than 17 years of professional experience in the Healthcare industry. Dave holds a Bachelor’s Degree in Health and Sports Sciences from the University of Oklahoma. Outside of the office Dave enjoys spending time with his wife and 3 children, as well as golf and staying active.


Chief Financial Officer

Gert-Jan Zwemstra is our CFO and contributes his financial and business management skills to the company. Gert-Jan has more than 25 years of experience in Finance, IT, Commercial and Consulting roles within Energy, Chemicals and Consumer Goods industries. He holds a Master of Economics from the University of Brussels. He likes operating at the intersection of Finance, IT, Business Management and Process Optimization. Away from the office, Gert-Jan enjoys college football and sampling new wines.


Chief Marketing Officer

With over 20 years as an agency VP Creative Director, Rick’s background in strategy, design and integrated communications is extensive, well documented and includes award winning global marketing initiatives for Fortune 100 Consumer and B2B clients. He approaches all of his challenges by first thoroughly getting to know and understand the product, company and client. His solutions reflect this sensitivity and often reach beyond client expectations. He enjoys playing guitar, travel and spending time with family.


Graphic Designer

John has more than ten years of experience honing his graphic design and marketing skills. With a B.S. in Journalism from the University of Kansas and a B.A. in Studio Arts from the University of Missouri-Kansas City, he brings a balanced and comprehensive approach to solving visual problems. After living in Kansas City and Chicago, John is finally home to raise a family and enjoy the laid back atmosphere of Tulsa. He enjoys watching movies, reading, listening to records, and spending time with his wife and children.