Leadership

Chief executive officer

Previous to his appointment as chief executive officer (CEO) of HCA Houston Healthcare North Cypress, Jim Beck Brown was chief development officer (CDO) at HCA Healthcare’s Gulf Coast Division.

Brown joined HCA Healthcare in 2017. Before coming to HCA Healthcare, Brown was senior vice president/CEO of ambulatory services for Memorial Hermann Health System. Brown has also served as the orthopedic service line executive for Memorial Hermann Health System and CEO of Memorial Hermann Sugar Land Hospital. His career began at Christus St. Joseph’s Health System in Paris, Texas as an administrative resident, eventually rising to the rank of vice president. He later served as chief operating officer (COO) at Lea Regional Medical Center in Hobbs, New Mexico, and COO at Doctors Hospital of Dallas.

Brown earned his bachelor’s degree in marketing at Texas A&M University and a master’s degree in healthcare administration from Trinity University. Brown is currently a fellow in the American College of Healthcare Executives and serves as an advisory board member of the Trinity University Healthcare Administration Program.

Chief medical officer

Mark Bomann, MD, has served as chief medical officer (CMO) at HCA Houston Healthcare North Cypress since November 2025. A board-certified anesthesiologist and experienced healthcare leader, he brings more than 20 years of expertise in clinical care, medical education, and hospital administration.

A Harvard-trained physician and Fellow of the American Society of Anesthesiologists, Dr. Bomann has held key leadership positions in both academic medicine and the U.S. Air Force Reserves, where he serves as a flight surgeon and pararescue medical director.

Committed to advancing quality, safety, and innovation in patient care, Dr. Bomann earned his medical degree from Harvard Medical School and completed his residency and chief residency in anesthesiology at the University of California, San Francisco.

Chief financial officer

Chris Rogerson has served as the chief financial officer (CFO) at HCA Houston Healthcare North Cypress since July 2025.

He previously served as the CFO at The Wellington Hospital, part of HCA Healthcare UK. Rogerson played a key role in driving strategic growth and operational efficiency across the UK’s largest private acute hospital. His leadership has contributed to the successful rollout of robotic surgery programs, major cost-saving initiatives, and service expansion projects.

Rogerston began his career with HCA Healthcare in 2008 and has since held multiple senior roles, including CFO positions at Lister Hospital, HCA Labs, and The Harley Street Clinic. He is a fellow of the Association of Chartered Certified Accountants and brings strong commercial acumen, a passion for innovation, and a collaborative approach to healthcare finance.

Chief nursing officer

Ann Byerman, MSN, RN, CCRN-K, has served as chief nursing officer (CNO) at HCA Houston Healthcare North Cypress since November 2025. In her role, she coordinates the hospital's nursing care and daily operations while also mentoring the next generation of nursing leaders.

Byerman has been a dedicated member of HCA Houston Healthcare for more than 30 years. She most recently served as CNO at HCA Houston Healthcare Medical Center where she opened three nursing units, developed strategic nursing plans, established the Rapid Response Team, enhanced clinical support resources for nurses and advanced patient safety through extracorporeal membrane oxygenation (ECMO) program growth and the cardiogenic shock program.

As a clinical leader, Byerman seeks to leverage her ability to form strategic partnerships, identify leaders and foster growth and development in nursing to create a culture of excellence at HCA Houston North Cypress.

She holds a bachelor's degree in nursing from Ohio University and a master's degree in nursing leadership and administration from Texas Tech University.