Jenelle Gardler, BS, RDMS Jenelle Gardler, BS, RDMS, is a registered diagnostic medical sonographer with the Center for Fetal Diagnosis and Treatment at The Children's Hospital of Philadelphia. Locations: Main Campus Phone: 1-800-468-8376 Education and Training Board CertificationRegistered Diagnostic Medical Sonographer (RDMS)Registered in Obstetrics/GynecologyUndergraduate DegreeBS in Diagnostic Imaging – Thomas Jefferson University, Philadelphia, PA Titles and Academic Titles Registered Diagnostic Medical Sonographer Departments and Services Center for Fetal Diagnosis and Treatment