Dr. Greg Sharp, Chief Medical Officer

Greg Sharp, M.D., Chief Medical OfficerGreg Sharp, M.D., serves as chief medical officer for Arkansas Children's Hospital. Sharp graduated medical school from the University of Arkansas for Medical Sciences (UAMS). He completed his residency in pediatrics at UAMS and ACH, followed by a residency/fellowship in child neurology at Mayo Clinic in Rochester, Minnesota with specialized training in clinical neurophysiology.

Sharp is board certified by the American Board of Pediatrics and by the American Board of Psychiatry and Neurology with Special Competence in Child Neurology, and Added Qualification in Clinical Neurophysiology and Epilepsy.

He currently serves as Chief of Child Neurology and holds the John H. Bornhofen, M.D. Endowed Chair in Child Neurology. He is professor of pediatrics and neurology at UAMS and ACH, and serves as the co-medical director of the Neuroscience Center, Neuroscience Inpatient Unit and Neurofibromatosis Clinic.


Kris Maddalena, Senior Vice President and Chief Nursing Officer

Kris Maddalena, MSN. RN, NE-BC, CENPKris Maddalena, MSN, RN, NE-BC, CENP, serves as senior vice president and chief nursing officer (CNO) for Arkansas Children’s Hospital. In her role, she provides clinical and administrative leadership for planning, organizing, directing, monitoring and evaluating safe and high-quality patient care at Arkansas Children’s Hospital.

Prior to Arkansas Children's, Maddalena served as assistant chief nursing officer at AdventHealth in Tampa, Florida. Before joining AdventHealth, she held several leadership positions during her tenure at SSM Health in Missouri and University of Florida Health in Jacksonville, Florida.

Maddalena holds a Master of Science in Nursing from Chamberlain College of Nursing and a Bachelor of Science in Nursing from the University of Arkansas for Medical Sciences. She is certified Green Belt Lean Six Sigma and ANCC Certification in Nurse Executive - Board Certified and AONL certification Executive Nursing Practice (CENP®) and is registered by both Florida and Missouri State Boards of Nursing.


Amy Fallon, Senior Vice President of Operations

Amy Fallon, PhDIn her role, Amy has operational responsibility and accountability for all clinical support services, facilities and patient experience departments at Arkansas Children's Hospital. She provides strategic system oversight to environmental health and safety; planning, design and construction; and facilities operations.  

During her tenure at Children's, Amy helped lead building and expansion projects across the state, including the expansion of the ACH Jonesboro Clinic, and the construction of Arkansas Children’s Northwest, the ACH Southwest Little Rock Clinic, and most recently, the ACH Pine Bluff Clinic In Association with Jefferson Regional.