Staff
![Phillip Rivera](/_portrait-pictures/rivera-phillip-gbd.jpg)
Managing Director
Managed Care and Credentialing
915-215-5063
![Jo Ann Cruz](/_portrait-pictures/cruz-joann-gbd.jpg)
![Syliva Juarez](/_portrait-pictures/juarez-sylvia-gbd.jpg)
Medical Staff Credentialing Specialist
Credentialing
915-215-4469
![Elvia Nazario-Sierra](/_portrait-pictures/nazario-sierra-elvia-gbd.jpg)
Medical Staff Credentialing Specialist
Credentialing
915-215-4479
![Shantal Martinez](/_portrait-pictures/martinez-shantal-gbd.jpg)
Medical Staff Credentialing Specialist
Enrollment
915-215-5389
![Vonnise Lewis](/_portrait-pictures/lewis-vonnise-gbd.jpg)
![Andrew F. Piedra](/_portrait-pictures/_placeholder.jpg)
Medical Staff Credentialing Specialist
Credentialing
915-215-6009
![Cynthia Torres](/_portrait-pictures/torres-cynthia-gbd.jpg)