Rochester, Minnesota


Carey.William@mayo.edu Clinical Profile


William A. Carey, M.D., conducts large retrospective cohort studies to characterize many aspects of neonatal intensive care, including resource utilization and patient-important clinical outcomes.

Neonates may require care in neonatal intensive care units (NICUs) for a variety of reasons. Whether born prematurely or with acquired or congenital diseases, these patients need complex care processes and are at risk of long-term complications.

Focus areas

Health-services research helps propel the understanding of how health technologies, provider practices and social factors impact patients' clinical outcomes.

  • Hypoxic respiratory failure. Dr. Carey and his collaborators describe how neonatologists prescribe pulmonary vasodilators in NICUs and characterize the effects of these medications.
  • Community-born neonates. Dr. Carey and his collaborators assess whether and how outcomes differ between neonates born in regional centers and those born in community-level hospitals.
  • Critical in-hospital outcomes. Dr. Carey and his collaborators determine the rates of various disease states among different neonatal subpopulations, and characterize the impact of those conditions on other patient-important outcomes.

Significance to patient care

Every year in the United States nearly 40,000 babies require admission to a neonatal intensive care unit. Because of the barriers to conducting clinical trials in the neonatal population, large-scale cohort studies are a critical resource for understanding how to provide safe, effective care to hospitalized neonates. The results of these studies influence clinical practice guidelines developed by international professional societies.

Professional highlights

  • Recipient, Distinguished Junior Investigator Research Career Development Award, Department of Pediatric and Adolescent Medicine, Mayo Clinic, 2012
  • Recipient, Loan Repayment Program Award, National Institute of Child Health and Human Development, National Institutes of Health, 2003-2007


Primary Appointment

  1. Consultant, Division of Neonatal Medicine, Department of Pediatric and Adolescent Medicine

Academic Rank

  1. Professor of Pediatrics


  1. Fellow - Neonatal-Perinatal Medicine University of California, San Francisco
  2. Resident - Pediatrics Stanford University
  3. MD Brown University School of Medicine
  4. Dartmouth Medical School
  5. BS - Biology University of California, Los Angeles

Clinical Studies

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