Our Experts in Neonatal Care
The experts at Penn State Health Children’s Hospital are committed to providing our pediatric patients with comprehensive and multidisciplinary care.



Chintan K. Gandhi, MBBS
Neonatal - Perinatal Medicine
Location(s)
Penn State Health Pediatric Specialties










Madeline K. Keister, CRNP
Nurse Practitioner

Maria T. McGarvey, PA-C
Physician Assistant


Katie L. Nissly, CRNP
Nurse Practitioner

Nanyaly M. Santiago-Aponte, MD
Palliative Medicine, Pediatrics


Cailin A. Wilson, CRNP
Nurse Practitioner
Additional Neonatology Team Members
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Austin Carrier, DO
Fellow -
Brandon Costello, DO
Fellow -
Rupa Garikipati, MD
Fellow -
Zissis Chroneos, PhD
Director of Basic Science research for the Division of Neonatal-Perinatal Medicine -
Yasin Uzin, PhD
Faculty Member, Division of Neonatal-Perinatal Medicine -
Ashley Fricchione, BSN, RN, RNC-NIC
Nurse Manager -
Rebecca Diaz, BSN, RN, RNC-NIC
Assistant Nurse Manager -
Kelly Bowman, BSN, RN, RNC-NIC
Clinical Head Nurse -
William Werts, MSN, RN, RNC-NIC
Clinical Staff Leader -
Raechal Siegal, MSN, ACCNS-N, RNC-NIC
Neonatal Clinical Nurse Specialist, Nursing Quality Specialist -
Heather Stephens, DNP, RN, APRN, RNC-NIC, NCNS
Clinical Practice Nurse Leader -
Lauren Libhart, BSN, RN
Clinical Nurse Instructor -
Abby Corman, MSW, LSW
Social Worker -
Channing Griffith, MSW, LSW
Social Work -
Jennifer Erkinger, MS, RRT-NPS, AE-C, C-NPT
Pediatric Clinical Specialist Respiratory Therapy, Neonatal ECMO Coordinator -
Ashley Grim, MHA, RRT-NPS
Respiratory Operations Manager, Children's Hospital -
Catherine E. Rejrat, PharmD, BCPPS
Clinical Pharmacy Specialist -
Stephanie Altemus Yohe, MS, RD, LDN, IBCLC
Clinical Dietitian -
Cintia Vazquez, MPS, RDN
Clinical Dietician -
Carrie Ashby, MEd, CCLS II, CEIM
Child Life Specialist -
Jennifer Shearn, BA
Child Life -
Tiffany Kluge, BSN, RN
Care Coordinator