Executive Team

Charles “Chuck” Henderson has been the CEO of the American Diabetes Association (ADA) since 2022. Chuck leads an organization powered by over 565,000 volunteers, over 10,000 healthcare professionals, and over 400 staff members dedicated to the mission to prevent and cure diabetes and to improve the lives of all people affected by diabetes. His leadership empowers the millions of people living with diabetes through groundbreaking research, education, advocacy, and meaningful connections. 

Chuck joined the ADA as chief development officer in 2020 after spending 24+ years in for-profit sectors and volunteering in the nonprofit sector. Philanthropy, sales, and fundraising are threaded through the fabric of his DNA. As part of his mission-centered leadership, Chuck launched the ADA’s Office of Health Access to address the lack of healthcare access and other disparities for populations at higher risk for diabetes, obesity, and related complications. 

As part of the ADA’s mission, he founded the Obesity Association, a division of the ADA (the association), to get further upstream in one of the leading risk factors for type 2 diabetes: obesity, which accounts for up to 53% of new type 2 diabetes cases every year. Through a multi-pronged approach, the association is working to reduce the stigma around obesity so that people seek the care they deserve, as well as developing the Standards of Care in Overweight and Obesity that provides healthcare professionals with guidelines for caring for people living with overweight or obesity.  

His efforts also expanded community engagement programs, such as the ADA’s Diabetes Prevention Alliance, which aims to scale and improve access to the National Diabetes Prevention Program—a lifestyle change program that has reached thousands of individuals in communities at higher risk for diabetes. Under Chuck's leadership, the ADA mobilizes over 500,000 advocates annually, resulting in over 400 healthcare-related legislative measures being introduced in Congress that have advanced change for diabetes care and prevention. 

Prior to the ADA, Chuck was the CEO for Champion Life Safety Solutions. Before that, he was a sales executive running multi-billion-dollar territories across the country for Dell Healthcare, Commonground Marketing, and Viacom. He is passionate about spending the balance of his career in a space that will make a significant impact on the lives of millions across the country. 

Chuck is a board member of the National Health Council and Cotton Bowl Athletic Association, past chairman of Champion Life Safety Solutions, and co-founder of the Aggie Impact Gala, which provides fully funded four-year scholarships and urgent financial support to students. He is also a member of the Young Presidents’ Organization. 

He holds his Bachelor of Science in Agricultural Economics from Texas A&M University, where he excelled as a varsity basketball letterman and team captain. His academic foundation in economics helps him balance the ADA’s mission-driven objectives with financial sustainability. 

Charlotte is Chief Operating Officer for the American Diabetes Association. Since 1940, the ADA has been committed to its mission to prevent and cure diabetes and to improve the lives of all people affected by diabetes. 

Charlotte is responsible for driving strategic initiatives, managing financial resources, and ensuring operational efficiency and effectiveness of ADA's programs and services. The divisions reporting into Charlotte include Procurement & Administrative Services, Convention Operations, Data Analytics, Financial Services, Human Resources, Information Technology & Services, Legal & Compliance, and Operations.

Charlotte first joined the ADA in 1990 and is a seasoned leader with decades of experience in both not-for-profit and public accounting. She has led several financial and operating teams through business process redesigns, system implementations, strategic business planning and execution, resource recruitment and allocation, budgeting, and designing KPI measurements.

Prior to joining the American Diabetes Association, Charlotte was a staff accountant at Ronald K. King, CPA, where she was responsible for compilation and tax preparation for several individuals, partnerships and corporations. Additionally, she was part of the audit assurance team. 

Charlotte holds a degree in Accounting from the University of Wyoming in Laramie, Wyoming. She is also a Certified Public Accountant.

Joshua J. Neumiller, PharmD, CDCES, FADCES, FASCP is senior vice president, Medical Affairs for the American Diabetes Association (ADA). In this role he leads and develops programs that advance evidence-based standards in diabetes care. He has also assumed expanded duties while the ADA conducts a comprehensive search for a new chief scientific and medical officer (CSMO).

Prior to joining the ADA staff, Josh served as a member of the ADA’s board of directors. He was also previously Chair and Allen I. White Distinguished Professor in the Department of Pharmacotherapy at Washington State University and Lead Pharmacist Researcher at Providence Medical Research Center in Spokane, Washington. Josh is past Editor-in-Chief for the ADA journal Diabetes Spectrum, co-Editor for the ADA book Medications for the Treatment of Diabetes, and author of Practical Insulin. 

Josh has served on multiple ADA committees and work groups and notably served as Chairman of the ADA’s Professional Practice Committee from 2018–2019, whose primary responsibility is revising the ADA Standards of Medical Care in Diabetes each year. Josh’s clinical, research, and service interests involve improving uptake and use of guideline-directed medical therapies in people with diabetes and chronic kidney disease, and he is a former investigator with the Center for Kidney Disease Research, Education and Hope (CURE-CKD). Josh was honored with the 2024 ADA Outstanding Educator in Diabetes Award and the 2025 Rachmiel Levine Medal for his service to ADA and work in diabetes care, research, and education.

Osagie Ebekozien, MD, MPH, CPHQ, is the Chief Quality Officer for the American Diabetes Association (ADA). In this role, he leads ADA efforts to transform diabetes and obesity quality outcomes and improving access to evidence-based practice.

He most recently served as the Chief Medical Officer for T1D Exchange, Boston. In that role, he led diabetes clinical affairs, quality, healthcare access, and population health improvement. Prior to his time at T1D Exchange, he held roles in several capacities in primary care transformation, obesity, and type 2 diabetes management. 

He is a recipient of several awards including the 2024 James Reed NMA Outstanding Physician, 2022 Eli Lilly Leonard (Diabetes Research), the 2021 ISPAD International Pediatric Diabetes Innovation, and the 2019 NACCHO Model Practice awards amongst others. He has co-authored more than 100 manuscripts and is a frequent speaker at professional conferences

Lisa Murdock is the Chief Advocacy Officer for the American Diabetes Association. With more than 30 years of government affairs experience, Lisa leads the ADA’s advocacy efforts to ensure people with diabetes have access to adequate and affordable healthcare, insulin and other medications, healthy food and other prevention programs, and that students with diabetes have medically safe and equal access to education.

With nearly 30 years of experience across the marketing and digital landscape, Jacque Sebany brings a distinctive blend of strategic leadership, creative vision, and operational expertise shaped by both nonprofit and corporate environments. Her expertise spans brand and business strategy, integrated marketing, digital transformation, customer engagement, user experience/user interface, content and experience design, front-end development, and performance-driven marketing.

Prior to returning to the ADA in her current role, Jacque served as the ADA’s chief marketing and digital officer (CMDO) from 2020 to 2022. She later launched her own consulting practice while continuing to partner with the ADA to lead marketing and brand strategy for its scientific meetings, including the Scientific Sessions, the Clinical Update Conference, and the Diabetes Technology Meeting.

As CMDO, Jacque leads growth-focused initiatives that bring the ADA brand to life, deepen engagement, and drive revenue across the organization. She oversees the continued evolution of the marketing ecosystem to deliver integrated, data-driven campaigns, elevate the ADA’s voice through impactful communications, and create innovative experiences that strengthen both revenue growth and emotional connection with the communities the ADA serves.

Jacque previously spent more than six years with the American Heart Association where she led digital content strategy initiatives designed to advance mission impact and strengthen audience engagement. Her work in the health nonprofit space has deepened her passion for purpose-driven organizations and reinforced her belief in marketing as a powerful tool for creating meaningful change within the communities these organizations serve.

Throughout her agency career, Jacque has led strategic marketing and brand initiatives for clients including FedEx, the United States Department of the Treasury, the Bahamas Ministry of Tourism, Gold’s Gym, Hyatt Hotels, and numerous leading consumer brands.

A creative at heart, Jacque holds a degree in art with concentrations in fashion and interior design. She is passionate about transforming organizations and elevating brand experiences through a design-driven, audience-first approach. Known for building high-performing teams and modernizing marketing operations, she brings a rare combination of creativity, strategy, and growth leadership to every organization she serves.

Elizabeth Dunn is the ADA’s chief development and revenue officer. Throughout her career in national nonprofit, she has worked across a variety of functions, including marketing, volunteer engagement, and corporate partnerships, giving her a broad perspective on how mission-driven organizations operate and grow. Elizabeth leads the ADA’s revenue strategy, field development, and strategic growth initiatives to help expand the organization’s reach, engagement, and mission impact.