Our Faculty | Neonatal-Perinatal Medicine Fellowship

UVM Medical Center Neonatal-Perinatal Medicine Fellowship

Our Faculty

Aaron Wallman-Stokes, MD

Program Director, Assistant Professor of Pediatrics

Dr. Wallman-Stokes completed his pediatric residency at the Children's Hospital of Philadelphia, after which he returned to his childhood home of New York City for fellowship training in Neonatal-Perinatal Medicine at the Columbia University Irving Medical Center. Following fellowship he remained at Columbia as a member of the faculty until joining the UVM Medical Center in 2020. His research has primarily focused on characterizing premature infants' oxygen exposure and investigating how poor growth and hypoxemia are associated with the risk of developing retinal disease. He has also worked as part of multicenter research groups exploring the relationship between particular vital sign patterns early in life and the development of infection as well as diseases of the lungs, eyes and brain. He is passionate about teaching and working with trainees, dating to his time as an elementary school teacher prior to attending medical school.

Deirdre O'Reilly, MD, MPH

Division Chief, Associate Program Director, Associate Professor of Pediatrics

Dr. O'Reilly, MD, MPH joined the division in 2016 from Boston Children's Hospital and Beth Israel Deaconess Medical Center, where she had been an attending neonatologist since 2007. She completed her fellowship in Neonatal-Perinatal Medicine at the Harvard Neonatal-Perinatal Medicine Program, during which time she pursed an MPH in Maternal and Child Health from T.H. Chan School of Public Health. She worked on a team of clinicians that established the first hypothermia program for hypoxic-ischemic encephalopathy in New England. Her research focuses on follow-up of high-risk infants after discharge from the NICU, educational strategies for assessment of learners, and coordination of perinatal outreach and quality improvement initiatives. Dr. O'Reilly is a member of the Organization of Neonatal Training Program Directors Executive Council and she co-chairs the Leadership Committe for the Mid-career Neonatologist (MiDCaN) group of the American Academy of Pediatrics, Section on Neonatal Perinatal Medicine (AAP SoNPM).

Whittney Barkhuff, MD, PhD

Medical Director, Associate Professor of Pediatrics

Dr. Barkhuff completed her pediatric residency at Massachusetts General Hospital in Boston and the Neonatal-Perinatal Medicine fellowship at the University of New Mexico in 2017. She then returned to UVMMC, where she had previously completed her MD/PhD, to join the division of neonatology. During fellowship, she was involved in quality improvement aimed at reducing false positive blood cultures, as well as in evaluating the impact of the "baby-friendly" health initiative on NICU admissions for hypoglycemia. At UVMMC, she serves as the Medical Director of the NICU and Co-Chairs the Neonatal Resuscitation Committee. She is currently focused on optimizing patient care through a collaborative multidisciplinary approach and continues to be passionate about medical student, resident, and fellow education.

Charles Mercier, MD, MPH

Professor of Pediatrics

Dr. Mercier completed his pediatrics residency at the Boston Children's Hospital and his Neonatal Perinatal Medicine fellowship at the University of Rochester where his research focused on hyperoxic lung injury. Following fellowship, Dr. Mercier joined the Neonatal Perinatal Medicine faculty at the University of Vermont where he completed his Masters in Public Health. He is currently an attending neonatologist in the NICU and Neonatal Medical Follow-up Clinic and a Professor of Pediatrics at the Larner College of Medicine. He continues his outreach work in Perinatal Quality Collaborative - Vermont, serves on the UVM Public Health Program Curriculum Committee and the board of the Northern New England Perinatal Quality Improvement Network. His research interests include NICU / Delivery Room simulation, high-risk infant follow-up outcomes, preventing chronic lung disease, and applying public health data to develop strategies supporting optimal perinatal health care delivery in hospitals anchored in rural settings. Dr. Mercier is the former UVMCH Chief of the Division of Neonatal-Perinatal Medicine, Medical Director of the NICU, and Director of the NICU Transport and Quality Improvement Teams

Roger Soll, MD

Director of Research, Professor of Pediatrics

Dr. Soll is the H. Wallace Professor of Neonatology at the Larner College of Medicine and is President of the Vermont Oxford Network and Director of Network Clinical Trials and Follow-up. Dr. Soll is an authority in evidence-based medicine and randomized clinical trials. He is the coordinating editor of Cochrane Neonatal, part of the Cochrane Collaboration, and author or co-author of the Cochrane Reviews of surfactant therapy. He is the author of numerous peer reviewed articles and book chapters on the subject of surfactant replacement therapy and evidence-based medicine. A native of New York City, Dr. Soll graduated from Cornell University with a degree in Genetics and History of Science in 1975. He received his M.D. degree from the University of Health Sciences/Chicago Medical School in 1978. He returned to New York City to complete his residency training in Pediatrics at Bellevue Hospital/New York University Medical Center in 1981. After 2 years with the Public Health Service, Dr. Soll returned to academic training. He completed the post graduate fellowship in Neonatal-Perinatal Medicine at the University of Vermont in 1983 and has remained in Vermont ever since.

Danielle Ehret, MD, MPH

Professor of Pediatrics, Asfaw Yemiru Green and Gold Professor of Global Health

Dr. Ehret is the Asfaw Yemiru Green and Gold Professor of Global Health and Associate Professor of Pediatrics with Tenure at the Larner College of Medicine and the Chief Medical Officer and Director of Global Health for Vermont Oxford Network. Dr. Ehret also serves as an invited content expert with the International Pediatrics Association, African Neonatal Association and World Health Organization. Dr. Ehret is from rural central New York, graduated with honors from Cornell University with a degree in Human Biology, Health and Society, and received her M.D. degree from the State University of New York's Upstate Medical University. Dr. Ehret completed her pediatrics residency and the global health track at Yale New Haven Children's Hospital. She completed her Neonatal-Perinatal Medicine fellowship at the Harvard Neonatal-Perinatal Medicine training program and her Masters in Public Health at the Harvard T.H. Chan School of Public Health. Dr. Ehret joined the faculty at UVMMC in 2015. She is passionate about the synergy of improvement and implementation science with investment in leadership and community development. She has led several projects funded by the Bill and Melinda Gates Foundation and is currently co-PI of the African Neonatal Network.

Leslie Young, MD

Associate Professor of Pediatrics

Dr. Young completed her pediatrics residency at the University of Vermont Children's Hospital before joining the NPM Fellowship, which she completed in 2014. Dr. Young' current research is focused on optimizing care provided to infants and families affected by the opioid epidemic. Additional academic interests are in transitional physiology, reducing iatrogenic contributors to morbidity and mortality and optimizing research output through trial design. She currently serves and IMPACT VT (IMproving Pediatric Access to Clinical Trials in Vermont) MPI and on the leadership committee for the IDeA States Pediatrics Clinical Trials Network (ISPCTN). The ISPCTN is funded through the NIH with the goal of improving the feasibility of translational research in rural and underserved areas. In addition to her clinical and research efforts, Dr. Young enjoys her work mentoring fellows and early-stage investigators locally and nationally in areas of research development and career building.

Delia Horn, MD

Assistant Professor of Pediatrics, Director of Neonatal Transport, Director of Point-of Care Ultrasound

Dr. Horn received her undergraduate degree in English from Vassar College, then went on to receive her medical degree from the Larner College of Medicine at the University of Vermont. She completed both her pediatrics residency and her neonatal-perinatal medicine fellowship at the University of Vermont Children's Hospital and joined the faculty at UVMMC in 2020. Her academic interests lie in quality improvement and implementation science to improve global neonatal health. She also has an interest in global health education, and is active in the design and implementation of the Global Health Track in the UVM neonatal-perinatal medicine fellowship program. Additionally, Dr. Horn is the Director of Point-of-Care Ultrasound (POCUS) for the Division of Neonatal-Perinatal Medicine at UVM, and participates in promoting neonatal POCUS education locally, regionally, nationally, and internationally. She enjoys mentoring neonatology fellows and modeling evidence-based practice. Her research is focused on combining quality improvement, education, and advances in implementation (including POCUS) to reduce neonatal morbidity and mortality worldwide.

Adrienne Pahl, MD

Assistant Professor of Pediatrics

Dr. Pahl completed both her medical degree and Pediatrics Residency at the University of Vermont Children's Hospital (UVMCH). She worked as a primary care pediatrician in rural Vermont before returning to training to pursue a fellowship in Neonatal-Perinatal Medicine at the UVMCH. She has an academic interest in improving systems of care with a particular focus on work involving care of opioid exposed newborns and follow up of high-risk infants. During fellowship she planned, implemented, and now continues a quality improvement initiative to improve care of opioid exposed newborns. As an element of this project, she helped to introduce the Eat, Sleep, Console Care Tool at UVMCH. She continues to use quality improvement methodology with a goal to improve care and long term outcomes both in the NICU and in the neonatal follow up clinic.

Samuel Loren, MD

Assistant Professor of Pediatrics

Dr. Loren completed his pediatrics residency at The University of Washington and Seattle Children's Hospital and his fellowship training in Neonatal-Perinatal Medicine at Boston Children's Hospital and the Harvard University hospitals. During fellowship his research focused on utilization of medical equipment by NICU graduates as well as developing effective methods for supporting families with social factors that may negatively affect their NICU journey. He is passionate about teaching medical students and residents about respiratory management of NICU patients and about issues of equity in pediatric medicine.

Search UVM Health

Related Links

Aaron Wallman-Stokes, MD

Deirdre O'Reilly, MD, MPH

Whittney Barkhuff, MD, PhD

Charles Mercier, MD, MPH

Roger Soll, MD

Danielle Ehret, MD, MPH

Leslie Young, MD

Delia Horn, MD

Adrienne Pahl, MD

Samuel Loren, MD

Nurse Practitioners and Physician Assistants

Britney Accavallo, NNP

Lisa Atwood, NNP

Holley Cetrangolo, NNP

Dia Chakravarty, NNP

Nicole Cloutier, NNP

Katie Dawber, PA-C

Kimberly Kaufhold, PA-C

Kaitlin Kessler, NNP

Shane Molinari, NNP

Morgan Nealy, NNP

Meagan Oakes, PA

Jacqui Porzucek, NNP

Alexa Visco, NNP

Susan White, FNP

Amanda Woods, NNP

Related Links

Give to a Healthier Future