President and Chief Executive Officer

Marc L. Boom

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Abigail Buckwalter

Dr. Marc Boom has been the president and CEO of Houston Methodist since 2012.  

Houston Methodist is a hospital system with more than 2,700 beds and over 34,000 employees. 

Its flagship, Houston Methodist Hospital, has been recognized by U.S. News & World Report as an Honor Roll hospital eight times and the No. 1 hospital in Texas for 13 years in a row.

The system also includes a world-renowned research institute, seven community hospitals and a continuing care hospital, two large physician organizations and more than 50 GME programs. Houston Methodist is affiliated with several academic institutions including Weill Cornell Medical College, NewYork-Presbyterian Hospital, Texas A&M University and Rice University. 

Dr. Boom holds a bachelor’s degree in biology with high honors from The University of Texas at Austin, an M.D. with high honors from Baylor College of Medicine, and a Master of Business Administration from The Wharton School of the University of Pennsylvania. He completed a residency in internal medicine at Massachusetts General Hospital, Harvard Medical School, and fellowships in geriatric medicine and general medicine at the Hospital of the University of Pennsylvania. He is board certified in internal medicine and geriatric medicine and maintains a part-time clinical practice.

In 2020, Dr. Boom emerged as a national leader in the efforts to educate the public about COVID-19 and the need for vaccines, leading the way as the first hospital system CEO in the country to mandate vaccines for employees and physicians.


Abigail Buckwalter is Chief Executive Officer of Nestlé Health Science U.S. (NHSc). Leading a team of more than 6,000 employees, Abigail is responsible for driving the strategic direction and growth of NHSc with a focus on developing nutrition solutions rooted in science. Throughout her time working within the Nestlé organization over the last two decades, Abigail has developed a strong belief in the organization’s purpose of empowering healthier lives through nutrition.

An integral leader at NHSc since its inception, Abigail brings a depth of experience to her role. She has built a proven track record of success, taking on increased leadership responsibilities in strategy and general management roles across Europe, Oceania, and the United States. Abigail most recently served as U.S. President of Active & Medical Nutrition and Global Head of Strategy, Marketing, and Innovation at NHSc. Abigail’s in-depth understanding of the businesses across the NHSc portfolio uniquely positioned her to drive cross-category growth for the organization. 
Under Abigail’s leadership, NHSc has achieved successful business turnarounds, culture development, and geographic expansion, as well as accelerated innovation, brand-building, and digital capabilities. Abigail has also driven significant improvements in operational efficiency, and spearheaded projects that have resulted in substantial revenue growth and market share expansion. Her diverse background, people-first approach, and entrepreneurial mindset fuel her ability to drive results for the business.

Prior to joining Nestlé, Abigail gained expertise early in her career at marketing and creative firms serving major brands and businesses across CPG, healthcare, non-profit and food service categories. She currently serves as Chair on the Board of Directors for Healthcare Nutrition Council and sits on the Executive Board of Directors for the Consumer Healthcare Products Association.

Dr. Gabrielle Lyon is a board-certified physician, founder of the Muscle-Centric Medicine® movement, and the New York Times-bestselling author of FOREVER STRONG.

With advanced training in nutritional sciences and geriatrics from Washington University in St. Louis, Dr. Lyon is at the forefront of a health revolution—one that places muscle, the organ of longevity, at the core of aging well, disease prevention, and optimal performance.
Through her clinical work, bestselling book, and top-ranked podcast “The Dr. Gabrielle Lyon Show,” she challenges outdated paradigms of health and empowers individuals to build bodies and minds that thrive under pressure.

Her message is clear: strength is not a luxury but a responsibility. Dr. Lyon's mission is to inspire a new standard of resilience, redefine how we age, and cultivate a generation that leads with clarity, lives with discipline, and contributes with intention.

Physician | NYT Bestselling Author

Gabrielle Lyon

Marc L. Boom, MD