8-5-2025
John Armitage is CEO of Our Blood Institute (Oklahoma City), the 6th largest US collector of volunteer blood donations. He has an MD degree from Duke University and trained in Clinical Pathology at UT Southwestern (Dallas). John has donated blood, red cells, and platelets over 150 times and helps organize quarterly blood drives at his church. He is a blood bank innovator, having originated Thank the Donor, the Blood Emergency Readiness Corps, Revivr, Donable, and Tic Tac Trivia.
Chair of the Day
Mark Neumeister
A leader in the field of taxation, Mark advises firm clients on all aspects of tax strategy. He has more than forty years of experience in tax planning, tax controversies and tax compliance in both public and private industry and has
advised companies on tax matters in more than forty states. A frequent speaker on tax topics, Mark has presented on a variety of tax matters to such groups as the Oklahoma Society of CPAs, Oklahoma Tax Institute, Tax Executives
Institute, Committee of Oklahoma Tax Accountants, and other groups. Shortly after Oklahoma enacted the Oklahoma Pass-through Entity Tax Equity Act of 2019, Mark was quickly recognized as a thought leader and frequent speaker on the implementation, including immediate election options, and interpretation of the new statute. His seminars on the new law were attended by more than 800 CPAs, lawyers, and tax practitioners.
In 2020, Mark was awarded the Rick Kells Outstanding Tax Professional Award by the Oklahoma Society of CPAs.
He has also received the organization’s Pathfinder and Silver Pen awards. Shortly after the Supreme Court’s decision in McGirt v. Oklahoma, Neumeister spearheaded the formation of a working group of CPA’s, lawyers, and tribal members, to study and advise CPAs on the tax impacts of the McGirt decision. Mark holds a Master of Public Accountancy from the University of Nebraska. He is very active in the Oklahoma Society of CPAs where he currently serves as Chair—Elect, Tax Committee chair, and advocacy council member. He volunteers his time with the Rotary Club of Oklahoma City, where he has served as treasurer and on several committees.
More about Mark
Mark and his wife Lynn have one daughter, Abby who is studying bio-medical engineering at Wichita State University. Mark and Lynn are avid tennis players and fans. Abby spent much of her childhood at the dance studio and at dance competitions (which means Mom & Dad spent lots of time there too)
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