Meet Your Team

Kidney Transplant Program

In this Section

If your child needs a kidney transplant, it's good to know you have an entire team of pediatric nephrologists, transplant surgeons, advanced practice providers and staff behind you at Phoenix Children's. Meet the experts who will make sure your child receives high-quality, well-coordinated care every step of the way.

Medical Director

Gina-Marie Barletta, MD

Specialty Nephrology

Surgical Director

Willem J. Van der Werf, MD

Specialty Liver Transplant

Nephrologists

Kelly A. Benedict, MD

Specialty Nephrology

Stephanie S. Hsieh, MD

Specialty Nephrology

Anjali B. Nayak, MD

Specialty Nephrology

Karen E. Papez, MD

Specialty Nephrology

Scott S. Williams, MD

Specialty Nephrology

Transplant Surgeons

Jeffrey A. Brink, MD

Specialty Transplant

Thomas Chaly, MD

Specialty Transplant

Alfredo J. Fabrega, MD

Specialty Transplant

Other Transplant Specialists

Gwen M. Grimsby, MD

Specialty Urology

Joseph J. Nania, MD

Specialty Infectious Diseases

Advanced Practice Providers

Kelsey C. Courtney, PNP

Specialty Gastroenterology, Nephrology, Transplant

Casey R. Haynes, PA-C

Specialty Gastroenterology, Nephrology, Transplant

Alia Torfa, PNP

Specialty Gastroenterology, Nephrology, Transplant

Additional Team Members

Transplant Coordinators

Kristina Hahn, BSN, RN
Robin Pineda, BSN, RN
Rhonda Van Iten,BSN, RN-BC
Brittany Zagrean, BSN, RN

Transplant Assistants

Andrea Bergin
Wendy Reyes

Dietitian

Nisha Patel, RD, CSP

Social Workers

Jenifer Riggins, LMSW, MPA
Omar Valadez, LMSW
Paris Brassfield, LMSW

Pharmacist

Rachel Jackson, PharmD, BCPPS

Research Coordinator

Tatiana Sa

Transplant Finance

Bridget Mosley
Danielle Williams

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Meet Your Team

Medical Director

Gina-Marie Barletta, MD

Surgical Director

Willem J. Van der Werf, MD

Nephrologists

Kelly A. Benedict, MD

Stephanie S. Hsieh, MD

Anjali B. Nayak, MD

Karen E. Papez, MD

Scott S. Williams, MD

Transplant Surgeons

Jeffrey A. Brink, MD

Thomas Chaly, MD

Alfredo J. Fabrega, MD

Other Transplant Specialists

Gwen M. Grimsby, MD

Joseph J. Nania, MD

Advanced Practice Providers

Kelsey C. Courtney, PNP

Casey R. Haynes, PA-C

Alia Torfa, PNP

Additional Team Members

Transplant Coordinators

Transplant Assistants

Dietitian

Social Workers

Pharmacist

Research Coordinator

Transplant Finance

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