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As Chief Physician Executive, Muenzer will lead all clinical care, including the health system’s growing behavioral health services, Phoenix Children’s Care Network, clinical research efforts at the Phoenix Children’s Research Institute, medical education and the growing network of Phoenix Children’s Pediatrics practices. He will continue to serve as Chief Operating Officer of Phoenix Children’s Medical Group, a role he has held since 2016.

One of the country’s foremost pediatric cardiothoracic surgeons has joined the top-ranked pediatric heart program at Phoenix Children’s. Roosevelt Bryant III, MD, now serves as surgical director of the Cardiac Transplantation and Mechanical Assist Device Program at Phoenix Children’s Heart Center, ranked 14 in the nation by U.S. News & World Report’s Best Children’s Hospitals and one of just 10 congenital cardiothoracic surgery programs in North America to earn the Society of Thoracic Surgeons’ highest-achievable three-star rating.

In an ongoing effort to expand and elevate health care for children and families, Phoenix Children’s tapped two senior nursing leaders to serve in executive positions for the growing pediatric health system. Rhonda Thompson, DNP, MBA, RN, NEA-BC, is chief nursing officer (CNO) and senior vice president of patient care services, and Katie Penson, MBA, RN, NEA-BC, now serves as vice president of critical care services at Phoenix Children’s.

For the fourth time, Phoenix Children’s Hospital earned national rankings by U.S. News & World Report’s Best Children’s Hospitals in 10 out of 10 specialties. The health system is the only children’s hospital in Arizona ever to have been recognized by U.S. News & World Report and one of only 24 children’s hospitals in the United States to rank in all 10 surveyed specialties for 2020-2021.