Charles M. Leys, MD, FACS


  • Chair, Division of Pediatric Surgery
  • Dr. James and Sharon Gutenberger Family Pediatric Surgery Chair
(608) 262-0466

600 Highland Avenue
MC 7375
Madison, WI 53792-0001
Scheduling or patient-related questions: (608) 263-6420
Administrative assistance: (608) 262-0466


  • MD, University of Wisconsin School of Medicine and Public Health, Madison, WI, 2000
  • Masters of Science in Clinical Investigation (MSCI), Vanderbilt University School of Medicine, Nashville, TN, 2005
  • General Surgery Residency, Vanderbilt University School of Medicine, Nashville, TN, 2007
  • Fellowship in Pediatric Surgery, Children’s Mercy Hospitals and Clinics, Kansas City, MO, 2009

Clinical Specialties

Dr. Leys is certified by the American Board of Surgery in General Surgery and Pediatric Surgery. He is Director of Pediatric Minimally Invasive Surgery at American Family Children’s Hospital, and his clinical practice emphasizes minimally invasive approaches to all types of pediatric and neonatal surgical disorders. He specializes in congenital malformations, chest wall deformities, thoracic diseases, surgical oncology, and gastrointestinal disorders, including gastroesophageal reflux and inflammatory bowel disease.

For a complete listing of conditions for which our pediatric surgeons provide treatment, please click here

Dr. Leys provides a wide range of services including Congenital Malformations, Chest Wall Deformities, Thoracic Diseases, Surgical Oncology, Gastroesophageal Reflux, Inflammatory Bowel Disease.

Research Interests

Dr. Leys’ research interests are focused on evidence-based pediatric surgery, including clinical trials and quality improvement.

Recent Publications

  • Evaluating the Regional Differences in Pediatric Injury Patterns During the COVID-19 Pandemic.
    Collings AT, Farazi M, Van Arendonk KJ, Fallat ME, Minneci PC, Sato TT, Speck KE, Gadepalli S, Deans KJ, Falcone RA, Foley DS, Fraser JD, Keller MS, Kotagal M, Landman MP, Leys CM, Markel T, Rubalcava N, St Peter SD, Flynn-O'Brien KT, Midwest Pediatric Surgery Consortium
    J Surg Res 2023 Sep; 289: 61-68
    [PubMed ID: 37086597]

  • Hemodilution in pediatric trauma:  Defining the expected hemoglobin changes in patients with liver and/or spleen injury: An ATOMAC+ secondary analysis.
    Stottlemyre RL, Notrica DM, Cohen AS, Sayrs LW, Naiditch J, St Peter SD, Leys CM, Ostlie DJ, Maxson RT, Ponsky T, Eubanks JW, Bhatia A, Greenwell C, Lawson KA, Alder AC, Johnson J, Garvey E
    J Pediatr Surg 2023 Feb; 58(2): 325-329
    [PubMed ID: 36428184]

  • Distribution of acute appendicitis care in children: A statewide assessment of the surgeons and facilities providing surgical care.
    Georgeades C, Farazi MR, Gainer H, Flynn-O'Brien KT, Leys CM, Gourlay D, Van Arendonk KJ
    Surgery 2023 Mar; 173(3): 765-773
    [PubMed ID: 36244816]

  • Use and Accuracy of Intraoperative Frozen Section Analysis for Ovarian Masses in Children and Adolescents.
    Gil LA, Lutz CM, Dillon PA, Downard CD, Ehrlich PF, Fallat ME, Fraser JD, Grabowski JE, Helmrath MA, Hertweck SP, Hirschl RB, Kabre R, Lal DR, Landman MP, Lawrence AE, Leys CM, Mak GZ, Markel TA, Raiji MT, Rymeski B, Saito JM, Sato TT, St Peter SD, Stafford LMC, Deans KJ, Minneci PC, Hewitt GD, Aldrink JH, Midwest Pediatric Surgery Consortium
    J Pediatr Adolesc Gynecol 2023 Apr; 36(2): 155-159
    [PubMed ID: 36209999]

  • Natural history and consequence of patent processus vaginalis: An interim analysis from a multi-institutional prospective observational study.
    Fraser JD, Duran YK, Deans KJ, Downard CD, Fallat ME, Gadepalli SK, Hirschl RB, Lal DR, Landman MP, Leys CM, Mak GZ, Markel TA, Minneci PC, Sato TT, St Peter SD, Midwest Pediatric Surgery Consortium
    J Pediatr Surg 2023 Jan; 58(1): 142-145
    [PubMed ID: 36307301]

All Publications on PubMed