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Michael Mederos, M.D.

  • Surgery - Surgical Oncology
  • Gastrointestinal Surgical Oncology
  • Minimally Invasive Surgery

Biography

Michael Mederos, M.D., is an Assistant Professor in the Department of Surgery at UT Southwestern Medical Center. He is a surgical oncologist specializing in cancers of the pancreas, liver, bile ducts, gallbladder, and stomach, as well as neuroendocrine tumors and metastatic disease involving the liver. He also treats complex benign disorders of the pancreas, liver, gallbladder, and bile ducts and has expertise in robotic and minimally invasive surgery.

Dr. Mederos earned his medical degree from Baylor College of Medicine in Houston, Texas. He completed a residency in general surgery at Ronald Reagan UCLA Medical Center, where he served as Administrative Chief Resident for Education. He received advanced training through a complex general surgical oncology fellowship at Memorial Sloan Kettering Cancer Center in New York.

Certified by the American Board of Surgery, he joined the UT Southwestern faculty in 2026.

Dr. Mederos is dedicated to providing compassionate, patient-centered cancer care. He works closely with patients, their families, and a multidisciplinary team of specialists to develop individualized treatment plans tailored to each patient's needs and goals. He believes that clear communication, shared decision-making, and personalized care are essential to achieving the best possible outcomes and ensuring that patients feel informed, supported, and confident throughout their treatment journey.

His research interests focus on locoregional therapy and conversion surgery, surgical outcomes, translational oncology, robotic surgery, and health policy. He has authored numerous peer-reviewed publications and abstracts in his areas of expertise and his work has been published in high-impact journals such as JAMA, Annals of Surgical Oncology, Journal of the American College of Surgeons, and Surgery. He has also delivered national presentations and invited lectures and contributed to four textbooks.

Dr. Mederos is a member of the Alpha Omega Alpha Honor Medical Society. In 2024, he earned the UCLA General Surgery Residency Program’s Golden Scalpel Award for Most Outstanding Performance as Chief Resident.

Personal Note

When he’s not caring for patients, Dr. Mederos enjoys traveling with his wife, watching and playing basketball, collecting watches, and exploring new restaurants and cuisines.

  • Medical Education - Baylor College of Medicine (2013-2017), M.D.
  • Residency - University of California - Los Angeles (2017-2024), General Surgery
  • Fellowship - Memorial Sloan Kettering Cancer Center (2024-2026), Surgical Oncology
  • Golden Scalpel Award for Most Outstanding Performance as Chief Resident 2024, UCLA General Surgery Residency Program
  • ABSITE Award – Best Performance in Class 2021-2024, American Board of Surgery In-Training Examination (ABSITE)
  • Excellence in Teaching with Humanism Award 2023, David Geffen School of Medicine, UCLA
  • League of Legends Alumni Recognition Award 2022, United Independent School District, Laredo, Texas
  • Medical Student Teaching Award 2021, University of California, Los Angeles
  • Alpha Omega Alpha Honor Medical Society 2017, Baylor College of Medicine
  • Michael E. DeBakey Department of Surgery Outstanding Student in Surgery Award 2017, Baylor College of Medicine
  • Books
    • Endocrine in Review of Surgery for ABSITE and Boards (3rd ed.)
      Mederos MA, Wu J (2022), Elsevier
    • Alimentary tract – anorectal in Review of Surgery for ABSITE and Boards (3rd ed.)
      Mederos MA, Chen F, Petrie B (2022), Elsevier
    • Anatomic and morphologic classifications of cholangiocarcinoma in Diagnosis and Management of Cholangiocarcinoma: A Multidisciplinary Approach
      Mederos MA, Girgis M (2021), Springer
    • Surgical techniques: operative decompression using the transaxillary approach for venous thoracic outlet syndrome (vTOS) in Thoracic Outlet Syndrome
      Mederos MA, Gelabert H (2021), Springer
  • Locoregional therapy and conversion surgery
  • Surgical outcomes
  • Translational oncology
  • Robotic surgery
  • Health policy

Clinical Focus

  • Gastrointestinal Surgical Oncology
  • Minimally Invasive Surgery
  • Gastric Cancer
  • Hepatopancreatobiliary Cancers
  • Neuroendocrine Tumors

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