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At HCA Houston Healthcare West, our experienced and knowledgeable leadership team is committed to improving the quality of care and helping our community.

Megan Marietta

Chief executive officer

Megan Marietta serves as the Chief Executive Officer of HCA Houston Healthcare West. Marietta currently serves as a member of the Houston West Chamber of Commerce Board of Directors. Marietta has received several honors and accolades, most recently honored for her dedication and commitment to the community and named the 2016 FamilyTime Women of Achievement in Medicine.

Previously Marietta served as Chief Operations Officer of HCA Houston Healthcare Kingwood. During her tenure, she oversaw a freestanding emergency room, two Observation Units, two ER expansions, a Neuro Cath Lab expansion and Neurosurgery expansion.

Prior to her tenure at HCA Houston Kingwood, Megan served in an Associate Administrator role at The Woman's Hospital of Texas after completing her administrative residency.

Ernest Mendoza

Chief medical officer

Ernest Mendoza serves as the Chief Medical Officer (CMO) at HCA Houston Healthcare West. As CMO, Dr. Mendoza drives physician culture, patient safety and quality.

Dr. Mendoza has more than 18 years of clinical practice across the clinical care continuum, including emergency, ambulatory, home, post-acute and acute care. He also held several progressive leadership roles prior to joining HCA Houston Healthcare. Most recently, he had corporate oversight for multiple areas across the Adventist Health System. Dr. Mendoza served as System Vice President of Medical Affairs. He was Vice President and CMO of Care Management and CDI. Additionally, he was System CMO for the Hospital at Home, providing acute care for patients in their homes across multiple markets and states. Prior to his time at Adventist, Dr. Mendoza served as system medical director of care management for Memorial Hermann Health System for almost four years.

Dr. Mendoza is board-certified in family medicine. He received his doctorate in medicine from the University of the East in Manila, Philippines. He completed his family medicine residency at Baylor College of Medicine in Houston, TX, and a general surgery internship at Baylor College of Medicine. He began his career as a primary care physician at HCA Houston Healthcare Kingwood and was also a hospitalist at HCA Houston Healthcare West and HCA Houston Healthcare Conroe.

Kenny Russo

Chief financial officer

Kenny Russo is the Chief Financial Officer at HCA Houston Healthcare West. In this role, he is responsible for managing financial operations and will analyze and explore means of reducing hospital operating costs and increasing revenues.

Before joining HCA Houston West, Russo served as the chief financial officer at Hill Regional Hospital in Hillsboro, TX, and at The Woman's Hospital of Texas. He serves on the board of directors for The Immunization Partnership and has a certified healthcare finance professional certification from the Healthcare Financial Management Association.

Russo received his bachelor in business administration from The University of Texas at Austin with a major in finance and minor in accounting. He earned his master's degree in business administration from Hardin-Simmons University in Abilene, TX.

Justin Brewer

Chief operating officer

Justin Brewer was appointed chief operating officer (COO) at HCA Houston Healthcare West in October 2020. In this role, he is responsible for providing oversight to all operational and ancillary departments as well as providing strategic leadership for service line development and capital efforts.

Prior to joining HCA Houston West, Brewer served as the associate COO at The Woman's Hospital of Texas and assistant administrator at HCA Houston Healthcare Kingwood, Medical Center of South Arkansas and Weatherford Regional Medical Center.

Brewer is a member of the American College of Healthcare Executives, Upsilon Phi Delta honor society, and the Texas State University Health Advisory Committee.

He earned his bachelor's degree in healthcare administration from Texas State University in San Marcos, TX, and his master's degree in healthcare administration from Trinity University in San Antonio, TX.

Tashauna McCray

Chief nursing officer

Dr. Tashauna McCray serves as Chief Nursing Officer (CNO) at HCA Houston Healthcare West. She oversees the clinical, operational, strategic, and financial performance of the hospital's nursing service line.

Previously, she served as CNO of Cypress Fairbanks Medical Center Hospital and had various responsibilities, including emphasizing transformative care delivery, performance improvement, and physician relationships to improve patient outcomes.

Dr. McCray has a bachelor's degree in nursing from the University of Arkansas at Monticello, a master's degree in nursing from the University of Texas Medical Branch at Galveston, a doctorate in nursing from Texas Tech University, and a master's degree in business administration from Prairie View A&M University.