Leadership


Mark A. Wallace

President and Chief Executive Officer

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Mark Wallace

Mark A. Wallace, was appointed president and chief executive officer of Texas Children’s Hospital in 1989 at the age of 36. Under his leadership, Texas Children’s has grown into one of the nation’s largest and most comprehensive pediatric and women’s health care organizations, recording nearly 4.9 million patient encounters annually and achieving international recognition as a referral center. U.S. News & World Report consistently ranks Texas Children’s Hospital in the top four among all children’s hospitals in the nation.

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Larry H. Hollier Jr., MD

Surgeon-in-Chief

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Dr. Larry H. Hollier Jr. is a board-certified plastic surgeon who specializes in plastic and reconstructive surgery, including pediatric hand surgery, facial fractures, cranial vault remodeling, midfacial distraction, and mandibular distraction. Dr. Hollier trained under Dr. Joseph McCarthy, the first surgeon in the United States to perform a facial distraction.

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Michael A. Belfort, MD, PhD

Obstetrician/Gynecologist-in-Chief

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Michael A. Belfort, MD, PhD, is Chair of the Department of Obstetrics and Gynecology at Baylor College of Medicine (BCM) and Obstetrician and Gynecologist-in-Chief of Texas Children’s Hospital. Dr. Belfort serves as the medical director of Texas Children’s Pavilion for Women, which offers women a complete range of obstetric and gynecologic services.

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Dean B. Andropoulos, MD, M.H.C.M.

Anesthesiologist-in-Chief

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Dean Andropoulos, M.D., M.H.C.M. is Anesthesiologist-in-Chief at Texas Children’s Hospital, and Professor of Anesthesiology and Pediatrics, and Vice Chair for Clinical Affairs in the Department of Anesthesiology at Baylor College of Medicine. He received his M.D. degree from the University of California, San Diego, and completed Pediatrics and Anesthesiology residencies at the University of California, San Francisco.

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James Versalovic, MD, PhD

Pathologist-in-Chief

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Dr. Versalovic serves as Pathologist-In-Chief at Texas Children’s Hospital and Director of Texas Children’s Microbiome Center. He is the Milton J. Finegold Professor and Vice Chair of Pathology & Immunology at Baylor College of Medicine.  He also is Professor of Molecular and Human Genetics, Molecular Virology & Microbiology, and Pediatrics, and Co-Director of the Medical Scientist (MD/PhD) Training Program at Baylor College of Medicine.

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Thierry A.G.M. Huisman, MD, PD, EDiNR, EDiPNR, FICIS

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thierryhuisman

Radiologist-in-Chief

Dr. Huisman serves as Radiologist-in-Chief at Texas Children’s Hospital. Prior to coming to Texas Children’s Hospital, Dr. Huisman served as Chairman of the Department of Imaging and Imaging Science at the Johns Hopkins Bayview Medical Center. In addition he was Director of the Division of Pediatric Radiology and Pediatric Neuroradiology at the Johns Hopkins Hospital in Baltimore and Co-Director of the Neurointensive Care Nursery (NICN), the Johns Hopkins Fetal Program and Center for Translational and Molecular Imaging (CTMI).

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Weldon Gage

Executive Vice President & Chief Financial Officer

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Weldon Gage

Weldon Gage, is the Executive Vice President & Chief Financial Officer for Texas Children’s. Mr. Gage re-joined Texas Children’s in June of 2016. He previously served in financial leadership roles at Texas Children’s for six years between 2005 and 2011. Prior to coming back to Texas Children’s, Mr. Gage served in the CFO roles at MD Anderson Cancer Center in Houston, and at the Children's Hospital of Wisconsin in Milwaukee. Mr. Gage’s healthcare financial management career began in 1997 at the Hendrick Health System in Abilene, Texas.

In addition to leading the organization’s financial strategy and overseeing the system’s financial management functions, his responsibilities currently include oversight of the system’s Revenue Cycle, Legal, Risk Management, Audit, Compliance and Government Relations functions.

Mr. Gage is a graduate of Texas A & M University with a Masters of Business Administration degree. He is also a graduate of Hardin-Simmons University with a BBA in Finance.


Mark Mullarkey

Executive Vice President

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Mark Mullarkey

Mark Mullarkey, is an Executive Vice President whose operational responsibilities include Surgery, Radiology, Pathology, Anesthesiology, Supply Chain, Quality, Medical Staff Services, Facilities Planning and Development, Facilities Operation, and the Health Plan.

During his 16-year tenure, Mr. Mullarkey has led Texas Children’s through some of its largest and most complex initiatives. He led “Delivering on the Vision,” a project focused on revenue enhancement and cost repositioning across our care delivery system, and “CareFirst” which was focused on expanding our emergency center, operating rooms and critical care areas at the Texas Medical Center Campus. A critical component of the CareFirst initiative was the $575 million, 19-story expansion of Legacy Tower, which included new state-of-the-art operating rooms, larger and family-friendly critical care areas as well as our number one ranked Heart Center. Mr. Mullarkey has also led the creation of TCPG, and the system-wide implementation of our electronic medical record, Epic. Mr. Mullarkey holds a master’s degree in business administration from the Jacob’s School of Management, University at Buffalo with certificates in Health Care Administration, Management Skills, and Human Resources.


Michelle Riley-Brown

Executive Vice President

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Michelle Riley Brown

Michelle Riley-Brown, is an Executive Vice President at Texas Children's Hospital and also serves as President of The Woodlands Campus and President of the West Campus. She also has oversight of our 61 Texas Children’s Pediatrics locations, 13 Urgent Care sites, 8 Specialty Care Centers and 2 Centers for Children & Women. Most recently she has taken over responsibility for the Marketing, Public Relations and Philanthropy functions at Texas Children’s. Ms. Riley-Brown joined Texas Children’s in 1999 as an administrative fellow, and has been a leader in the Texas Children’s system for more than 21 years. She has held various leadership roles throughout the organization and played an integral role in the successful preparation and execution of the West Campus, and The Woodlands Campus, both designed exclusively for children. Throughout her tenure at Texas Children's Hospital, Ms. Riley-Brown has focused on expanding Texas Children’s quality pediatric care into the outlying areas of Houston and beyond.

Ms. Riley-Brown is currently overseeing the Austin initiative and leading our outpatient strategy along with key operational efforts in that market. She is a fellow of the American College of Healthcare Executives (ACHE) and serves on various boards throughout the community. She completed her undergraduate degree at Tulane University and earned a master’s degree in healthcare administration from Washington University School of Medicine.


Dan DiPrisco

Executive Vice President

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Dan Diprisco

Dan DiPrisco, is an Executive Vice President at Texas Children's Hospital. Mr. DiPrisco has been with Texas Children’s for 18 years, starting out as an administrative fellow at BCM in 2002, and progressing quickly through the ranks. Mr. DiPrisco’s role during his tenure has progressed from business and physician support service leadership to hospital operations as Senior Vice President of The Woodlands and the Baylor Operating Unit. Mr. DiPrisco was critical in implementing and leading the Texas Children's Hospital/Baylor College of Medicine Operating Unit and opening The Woodlands Campus.

Currently, his primary areas of operational responsibility include the pediatric inpatient and ambulatory services on the Texas Medical Center Campus, Texas Children’s Pavilion for Women, nursing, pharmacy, respiratory and therapy services, as well as continued oversight of the institutional affiliation between Baylor College of Medicine and Texas Children's Hospital.

Mr. DiPrisco holds a Bachelor’s degree in Health Sciences from Purdue University and a Master’s degree in Healthcare Administration from Indiana University. He is a Certified Healthcare Financial Professional with the Healthcare Financial Management Association (HFMA), and also holds memberships with the American College of Healthcare Executives (ACHE), Medical Group Management Association (MGMA), and the Children’s Hospital Association (CHA).