texas oncology more breakthroughs. more victories



R.Y. Declan Fleming, M.D., FACS

General Summary

Dr. Fleming specializes in complex general surgical oncology, hepatobiliary and pancreatic surgery.


  • Bachelor of Science
    Biology and Chemistry with Honors, Houston Baptist University
  • Medical Doctorate
    The University of Texas Medical Branch, Galveston, TX
  • Internship, General Surgery
    The University of Texas Medical Branch, Galveston, TX
  • Residency, General Surgery
    The University of Texas Medical Branch, Galveston, TX
  • Fellowship, Metabolism, Burns, Trauma, Critical Care
    Shriners’ Burns Institute, Galveston, TX
  • Surgical Oncology Fellowship
    University of Texas M D Anderson Cancer Center, Houston, TX

Medical Practice

Research Interest

Experienced and compassionate surgeon leading the way in the care of patients with cancers of pancreas, liver, gastrointestinal tract, endocrine organs, skin and connective tissues.

  • Enhanced Recovery after Oncologic Surgery
  • Addressing Frailty and Nutritional Issues as Risk Factors for Cancer Surgery Patients
  • Development of biomimetics human organ-on-a-chip platforms to investigate the role of the human intestinal microbiome in the pathogenesis of human GI cancers

Surgery Locations

Other Information

Accolades & Memberships

  • Chief of Surgical Oncology, Department of Surgery and Perioperative Care at the University of Texas at Austin Dell Medical School
  • Associate Director for Surgical Services, LIVESTRONG Cancer Institutes
  • Texas Super Doctors
  • Alpha Omega Alpha Medical Honor Society
  • Continuing Education Committee – Society for Surgical Oncology
  • Past Chair – Committee on Cancer, Texas Medical Association
  • Past President – Travis County Medical Society Memberships
  • Society for Surgical Oncology
  • American College of Surgeons
  • Texas Surgical Society
  • Society for Surgery of the Alimentary Tract
  • Americas Hepato-Pancreatico-Biliary Association
  • North American Neuroendocrine Tumor Society
  • Christian Medical and Dental Society
  • Travis County Medical Society
  • Texas Medical Association

Community Service

  • Livestrong Foundation – Patient navigation advisory group
  • Hope in the City Church – Board of Trustees, Board of Elders


  • Complex GI Surgical Oncology
  • Minimally Invasive Surgical Oncology
  • Hepatobiliary and Pancreatic Surgery
  • Pancreas Cancer Surgery
  • Liver Cancer Surgery
  • Neuroendocrine Tumor Surgery
  • Melanoma Surgery
  • Soft Tissue Sarcoma Surgery