Division Chief
![Katherine W. Perry, MD](https://ep.phoenixchildrens.com/ep/linkedfiles/findadoctor/wesseling-perry_katherine_20220915_web.jpg)
Physicians
![Ashley M. Gefen, MD](https://ep.phoenixchildrens.com/ep/linkedfiles/findadoctor/gefen_ashley_20230831_web.jpg)
Ashley M. Gefen, MD
Specialties
![Stephanie S. Hsieh, MD](https://ep.phoenixchildrens.com/ep/linkedfiles/findadoctor/Hsieh-Stephanie-MD.jpg)
Stephanie S. Hsieh, MD
Specialties
![German A. Lozano Guzman, MD](https://ep.phoenixchildrens.com/ep/linkedfiles/findadoctor/lozano-guzman_german_20221027_web.jpg)
German A. Lozano Guzman, MD
Specialties
![Anjali B. Nayak, MD](https://ep.phoenixchildrens.com/ep/linkedfiles/findadoctor/Nayak_Anjali-190711-WEB.jpg)
Anjali B. Nayak, MD
Specialties
![Karen E. Papez, MD](https://ep.phoenixchildrens.com/ep/linkedfiles/findadoctor/Papez-Karen-MD.jpg)
Karen E. Papez, MD
Specialties
![Scott S. Williams, MD](https://ep.phoenixchildrens.com/ep/linkedfiles/findadoctor/104286_Williams_Scott_20220803_ID.jpg)
Scott S. Williams, MD
Specialties
![Joshua J. Zaritsky, MD, PhD](https://ep.phoenixchildrens.com/ep/linkedfiles/findadoctor/zaritsky_joshua_20230330_web.jpg)
Joshua J. Zaritsky, MD, PhD
Specialties
Advanced Practice Providers
![Benjamin K. Jones, DNP](https://ep.phoenixchildrens.com/ep/linkedfiles/findadoctor/jones_benjamin-220217-web.jpg)
Benjamin K. Jones, DNP
Specialties