Dr. Kruppstadt graduated from the University of Texas Health Science Center at San Antonio in 1990 and completed her pediatric internship and residency at William Beaumont Army Medical Center in El Paso in 1993. She promptly earned her Board Certification from the American Board of Pediatrics in 1993, and she is a Fellow of the American Academy of Pediatrics.

She served as a U.S. Army pediatrician at Ft. Hood, Texas and then relocated to The Woodlands, Texas in 1995. She has since worked as a general pediatrician in various venues, including Texas Children’s Pediatrics and Texas Children's Urgent Care, and she served as a pediatric hospitalist for Baylor College of Medicine at St. Luke's Hospital in The Woodlands, Texas.