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Cornelius A. Thiels, D.O., M.B.A.

  1. Hepatobiliary and Pancreas Surgeon
  2. Surgical Oncologist

Specialty Groups

Location

  1. Rochester, Minnesota

Languages

EnglishGerman

Dr. Thiels is a cancer surgeon and researcher who specializes in the surgical management of patients with sarcomas, pancreatic cancer, and metastatic colon cancer. He also has extensive training and experience in the treatment of appendiceal cancers, neuroendocrine tumors, pancreatic cysts, gastric cancer, and GIST. Dr. Thiels has special expertise in multimodality treatment of advanced or metastatic cancers, in which surgery is combined with radiation, chemotherapy, or immunotherapy.

Dr. Thiels utilizes minimally invasive techniques to perform a variety of operations (including robotic surgery) and is trained in the placement and management of Hepatic Artery Infusion Pump Chemotherapy for the management of unresectable liver tumors.

Dr. Thiels' lab focuses on improving outcomes for patients undergoing surgery and those with rare and advanced cancers.

  1. Appendix cancer
  2. Carcinoid tumor
  3. Carcinomatosis
  4. Gallbladder cancer
  5. Liver cyst
  6. Liver tumor
  7. Neuroendocrine tumor
  8. Pancreatic cancer
  9. Pancreatic cyst
  10. Pancreatic neuroendocrine tumor
  11. Recurrent cancer
  12. Retroperitoneal sarcoma
  13. Sarcoma
  14. Stage 4 colorectal cancer
  15. Stomach cancer
  1. Abdominal surgery
  2. Cancer treatment
  3. Cholecystectomy
  4. Cytoreductive surgery
  5. Gastrectomy
  6. Hepatic artery infusion pump chemotherapy
  7. HIPEC
  8. Irreversible electroporation
  9. Laparoscopic surgery
  10. Liver resection
  11. Microwave ablation for cancer
  12. Minimally invasive cancer surgery
  13. Minimally invasive liver surgery
  14. Minimally invasive pancreas surgery
  15. Pancreatectomy
  16. Pancreatic enucleation
  17. Robotic surgery
  18. Splenectomy
  19. Whipple procedure
  1. 2021
    Chief Fellow - Complex General Surgical Oncology Fellowshp Memorial Sloan-Kettering Cancer Center
  2. 2019
    Chief ResidentMayo Clinic
  3. 2016
    Research Scholar - Surgical Outcomes Research FellowshipMayo Clinic
  4. 2013
    Doctor of Osteopathic MedicineKansas City University of Medicine and Biosciences
  5. 2013
    MBA - Healthcare AdministrationRockhurst University

Certifications

  1. 2022
    Complex General Surgical OncologyAmerican Board of Surgery
  2. 2019
    General SurgeryAmerican Board of Surgery

Awards and honors

  1. 2023
    Young Alumni Achievement AwardKansas City University of Medicine and Biosciences (KCUMB)
  2. 2021
    Career Development Award Recipient Department of Surgery
  3. 2020
    Dr. Murray F. Brennan/David and Monica Gorin Sarcoma FellowMemorial Sloan-Kettering Cancer Center/Weil Cornell New York Presbyterian
  4. 2020
    Chief Fellow, Department of SurgicalMemorial Sloan-Kettering Cancer Center
  5. 2018
    SSO Annual Conference Poster of DistinctionSociety of Surgical Oncology
  6. 2018
    Mayo Brother Distinguished Fellowship AwardMayo Clinic
  7. 2018
    H.K. Gray Travel Award Mayo Clinic
  8. 2018
    Silver Award of the IHF/Austco Excellence Award for Quality & Safety and Patient-Centered CareInternational Hospital Federation
  9. 2017
    Nygaard AwardMayo Clinic
  10. 2017
    Inlow AwardMayo Clinic
  11. 2016
    Mayo International Health Program (MIHP) Scholarship Mayo Graduate School of Medicine, Mayo Clinic College of Medicine and Science, Department of Education Administration
  12. 2015
    Poster of Distinction: Pancreaticoduodenectomy for Pancreatic Neuroendocrine Tumors: Are Combined Procedures Justified? Society for Surgery of the Alimentary Tract
  13. 2015
    Mayo Quality Fellow: Gold Award Mayo Clinic
  14. 2015
    Mayo Quality Fellow: Silver Award Mayo Clinic
  15. 2015
    Mayo Quality Fellow: Bronze Award Mayo Clinic
  16. 2014
    Balfour AwardMayo Clinic
  17. 2013
    Student DO of the Year AwardCouncil of Osteopathic Student Government Presidents
  18. 2013
    Outstanding Senior AwardKansas City University of Medicine and Biosciences
  19. 2013
    Robert B. Cotter Award in SurgeryKansas City University of Medicine and Biosciences
  20. 2010
    Dr. Vernon Hayes Physicians Hall of Sponsors ScholarshipKansas City University of Medicine and Biosciences

Professional memberships

  1. 2023
    MemberBold. Forward. Unbound in Rochester.
  2. 2023 - present
    MemberSurgery Peer Review Research Committee
  3. 2023 - present
    Commiittee MemberMidwest Surgical Quality Subcommittee, Mayo Surgical and Procedural Committee, Mayo Clinic Rochester Committees
  4. 2023 - present
    Commiittee MemberRochester Patient Safety Subcommittee
  5. 2023 - present
    American College of Surgeons Cancer Surgery Standards Program, Content Development Committee
  6. 2023 - present
    MemberConnective Tissue Oncology Society
  7. 2022 - present
    ChairAmerican College of Surgeons, Mayo Clinic Rochester Committees
  8. 2022 - 2025
    ChairAmerican College of Surgeons
  9. 2022 - 2023
    MemberCancer Pragmatic Trials Working Group
  10. 2022 - 2023
    Review Panel MemberRochester Commitment Against Racism (RCAR)
  11. 2022 - 2023
    MemberKern Center Diversity Science TaskForce
  12. 2022 - present
    Committee MemberMayo Clinic Cancer Center Pragmatic Trials Working Group
  13. 2022 - present
    Commiittee MemberRochester Commitment Against Racism (RCAR)
  14. 2022 - present
    Committee MemberKern Center Diversity Science TaskForce
  15. 2019 - present
    MemberAmerican Association of Colleges of Osteopathic Medicine Association - Opioid Advisory Task Force
  16. 2017 - 2019
    MemberAmerican College of Surgeons - Advisory Council for General Surgery
  17. 2017 - present
    MemberSociety of Surgical Oncology
  18. 2016 - present
    MemberAmericas Hepatobiliary Association (AHPBA)
  19. 2016 - present
    MemberPancreas Club

Publications

Research activities

See a description of research activities.