Scottsdale, Arizona-based Carefx has named two new executives to its team. The firm said that it has named Dr. Ping Zhang ad EVP/Chief Technology Officer, and Amy Ferretti as VP Marketing. Zhang has served at QuadraMed, Siemens, ABB and GTE/Verizon. Ferretti has served at Clinicom, Quadramed, Lumedx, Sunquest/Misys and Concuity. Carefx is developing patient information systems for the healthcare industry.