Seton Family of Doctors

Samantha Heather Dallefeld, MD

Samantha Heather Dallefeld, MD Now Accepting New Patients
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Samantha Heather Dallefeld, MD

Dr. Dallefeld has happily returned to Austin with her husband and five fur kids. She is a Pediatric ICU attending physician at Dell Children’s Hospital. She has a competitive spirit and loves the outdoors, Texas, and a good country song.

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  • Pediatric Critical Care

Hospital Affiliation

  • Dell Children's Medical Center of Central Texas
  • Dell Seton Medical Center at The University of Texas
  • Seton Medical Center Austin
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Provides Care Through

  • Pediatric Critical Care Associates

My Passion for Healthcare

I was first exposed to medicine during childhood after the tragic loss of my brother. I remember the medical team's dedication to saving his life and the empathy they provided my family. My passion in pediatric critical care is to provide that same care and compassion to children and their families during the worst of times. I am fortunate to provide that care alongside a talented multi-disciplinary critical care team.

Services I Provide

  1. Invasive and non-invasive respiratory support
  2. Extracorporeal membrane oxygenation
  3. Continuous renal replacement therapy
  4. Procedural sedation
  5. Management of traumatic injury
  6. Management of shock
  7. Management of congenital heart disease

Degree & Residency

  • Medical School

    University of Texas Medical Branch at Galveston, Galveston, TX

  • Residency

    UT Austin Dell Medical School, Austin, TX

  • Fellowship

    Duke University Medical Center, Durham, NC

  • Board Certification

    American Board of Pediatrics

    AB of Pediatrics Critical Care Medicine

My Clinical Focus

I provide comprehensive, compassionate care for critically ill children and their families. I am dedicated to advancing the field of critical care through participation in multicenter research initiatives with a focus on safety and efficacy of drugs administered to children with life-threatening illnesses. I also enjoy teaching residents and fellows about critical care physiology and treatment.


  1. American Academy of Pediatrics
  2. Society of Critical Care Medicine

Why Choose Dell Children's

Dell Children's offers a different brand of healthcare. We call it personalized care. We believe in showing everyone dignity and respect while providing the best care possible for the children we serve.

We are the premier healthcare provider for children and adolescents in Central Texas. While Dell Children's Medical Center is the cornerstone of our pediatric care, our doctors, nurses and associates work in schools, clinics, programs and practices throughout the community to deliver excellent care and better health for our children.

We provide a range of health services to keep your children healthy. We are advancing healthcare and improving lives with easy clinical visits for everyday illnesses, school district and county health partnerships, in-hospital playtime through our child life program, community outreach events and innovative medical treatments for complex and specialized illnesses.

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