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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