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Peter N. Nau, MD, MS, FACS

Clinical Professor of Surgery - Gastrointestinal Surgery

Current Positions

  • Clinical Professor of Surgery - Gastrointestinal Surgery, University of Iowa
  • Surgical Director, Digestive Health Center, University of Iowa
  • Program Director, Bariatric Fellowship, University of Iowa

Education

  • BA, St. Olaf College, Northfield, Maryland
  • MD, University of Iowa Carver College of Medicine, Iowa City, Iowa
  • MS, Ohio State University, Columbus, Ohio
  • Resident in General Surgery, Ohio State University Medical Center, Columbus, Ohio
  • Fellow in Minimally Invasive and Bariatric Surgery, Massachusetts General Hospital, Boston, Massachusetts

Center, Program and Institute Affiliations

Research Interests

  • Foregut testing and outcomes in bariatric surgery
  • Roux-en-Y gastric bypass versus sleeve gastrectomy
  • Sarcopenia and outcomes in surgery
  • Machine learning, automated intelligence, and video-based assessment in surgery

Licenses & Certifications

  • Board Certified, General Surgery, American Board of Surgery
  • Iowa Medical License, Iowa Board of Medicine, Iowa
  • Certified, Basic Life Support, American Heart Association

Selected Publications

  • Leon Siegel MD, Rory Carroll MD, Dakota T. Thompson MD, Ryan Lehmann DO, Jessica Smith MD, and Peter Nau MD. Concurrent Hiatal Hernia Repair and Gastric Bypass as an Adjunct in the treatment of Hiatal Hernia in Populations with Obesity.  Obesity Surgery.  Submitted 1/2025
  • Co-editor of The SAGES Manual: Transitioning to Practice. Gee, D. W., Nau, P. N. & Renton, D. (Eds.) Springer, 1st ed.
  • Co-editor of The SAGES Manual of Flexible Endoscopy. Trus, T. L., Sandler, B. J., Pauli, E. M. & Nau, P. N. (Eds.) Springer International Publishing. DOI: 10.1007/978-3-030-23590-1
  •  Nau, P., Pauli, E. M., Sandler, B. J. & Trus, T. L. (2020). Preface of The SAGES Manual of Flexible Endoscopy. In SAGES University Masters Program Series. pp. VII-VIII. SAGES MANUAL OF FLEXIBLE ENDOSCOPY. DOI: 10.1007/978-3-030-23590-1. ISBN: 978-3-030-23589-5.
  • Nikolian VC, Camacho D, Earle D, Lehmann R, Nau P, Ramshaw B, Stulberg J. Development and preliminary validation of a new task-based objective procedure-specific assessment of inguinal hernia repair procedural safety. Surg Endosc. 2024 Mar;38(3):1583-1591. doi: 10.1007/s00464-024-10677-2. Epub 2024 Feb 8. PMID: 38332173.
  • Nau P, Worden E, Lehmann R, Kleppe K, Mancini GJ, Mancini ML, Ramshaw B. (2023) Global assessment of surgical skills (GASS): validation of a new instrument to measure global technical safety in surgical procedures. Surg Endosc. 2023 Oct;37(10):7964-7969. doi: 10.1007/s00464-023-10116-8. Epub 2023 Jul 13. PMID: 37442836.
  • Fontan, F., Talledo, O., Nau, P. (2023). Catheter-Based pH Testing. In: Patel, A.D., Aryaie, A., Grams, J., Khaitan, L. (eds) The SAGES Manual of Physiologic Evaluation of Foregut Diseases. Springer, Cham. Epub 2023 Oct 13. https://doi.org/10.1007/978-3-031-39199-6_13
  • Nau P, Worden E, Lehmann R, Kleppe K, Mancini GJ, Mancini ML, Ramshaw B, Woods MS. (2023) Using video-based assessment (VBA) to document fellow improvement in safely completing the jejunojejunostomy portion of laparoscopic Roux-en-Y gastric bypass (RYGB) surgery. Surg Endosc. 2023 Nov;37(11):8853-8860. doi: 10.1007/s00464-023-10425-y. Epub 2023 Sep 27. PMID: 37759145.
  • Ibele AR, Nau PN, Galvani C, Roth JS, Goldberg RF, Kurian MS, Khaitan L, Gould J, Pandya YK; SAGES Foregut Taskforce. (2023) Surgeon experience with insurance barriers to offering gastric bypass as an evidence-based operation for pathologic GERD. Surg Endoscopy 2023 Oct;37(10):7642-7648. doi: 10.1007/s00464-023-10212-9. Epub 2023 Jul 25. PMID: 37491660.
  • Talledo, O., Carroll, R., Worden, E., Greenwood, A. M., Alexander, H., Karlsdottir, B., Lehmann, R., Peoples, R., Smith, J., Thompson, D., Zhang, K. A. & Nau, P. (2023). The impact of COVID-19 on medium term weight loss and comorbidities in patients undergoing bariatric surgery and its association with psychological wellbeing. Surgical Endoscopy And Other Interventional Techniques. 37(2):1537-1542. DOI: 10.1007/s00464-022-09377-6. Epub 2022 Jun 22. PMID: 35731301; PMCID: PMC9215154.