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Devin C. Flaherty, DO,PhD,FACOS,FACS

  • Accepting New Patients
4.8 out of 5
90  Ratings , 20  Comments


Devin C Flaherty, DO, Ph.D., FACOS, FACS, is a fellowship-trained surgical oncologist and board-certified general surgeon. He attended medical and graduate school at the University of North Texas Health Science Center, completing a doctorate in both osteopathic medicine and integrative physiology. Dr. Flaherty then completed his internship and residency in general surgery at the Rowan University School of Osteopathic Medicine in Stratford, New Jersey. Dr. Flaherty received specialty training in surgical oncology through a fellowship at the John Wayne Cancer Institute in Santa Monica, California.

Dr. Flaherty’s interests focus on complex general surgical oncology, including diseases of the liver, pancreas, and GI tract, as well as the treatment of melanoma, and soft tissue malignancies. He also performs operations for benign and malignant endocrine disease. Dr. Flaherty’s recent research activities have focused on the prognostic implications of immunoprofiling and body mass index in colon cancer, surgical treatment approaches toward metastatic melanoma, and a review of the application of radiofrequency ablation for liver malignancies.

Dr. Flaherty aims to provide comprehensive cancer care in a compassionate manner, utilizing open, minimally invasive, and robotic surgical techniques to achieve optimal oncologic outcomes.

Common conditions treated include:

  • Colon cancer
  • Rectal cancer
  • Small intestine (bowel) cancer
  • Esophageal cancer
  • Stomach (gastric) cancer
  • Liver cancer
  • Pancreatic cancer
  • Tumors of the soft tissues and skin
  • Benign and malignant diseases of the thyroid, parathyroid, an adrenal glands

Robotic Surgery at Valley Health

In August 2022, Dr. Flaherty completed Valley Health's first robotic Whipple procedure, which treats diseases of the head of the pancreas. Since then, Dr. Flaherty and his team have performed additional Whipple procedures using robotic technology. Click here to learn more.

Dr. Flaherty belongs to the following professional organizations:

  • American Osteopathic Association
  • American College of Osteopathic Surgeons (Fellow)
  • Society of Surgical Oncology
  • American College of Surgeons (Fellow)

Academic Appointment

  • Assistant Clinical Professor of Surgery (Virginia Commonwealth University – Richmond, VA)
Medical Interests Areas of Interest:
  • Complex general surgical oncology
  • Diseases of the liver, pancreas, and GI tract
  • Treatment of melanoma and soft tissue malignancies
Research Interests:

Valley Health Surgical Oncology is actively enrolling patients in a clinical study to determine the best surveillance method for non-cancerous pancreatic cysts. The study compares more frequent monitoring versus less frequent monitoring to learn which approach leads to better outcomes for patients.

Click here to read more about the trial and watch a video from the ECOG-ACRIN Cancer Research Group.

Insurances Accepted: Aetna IND, Aetna HMO, Aetna PPO, Aetna/Coventry HMO, Aetna/Coventry WC, Aetna/Coventry POS, Aetna/Coventry PPO, Aetna/Coventry MCD, Aetna/Coventry MCR, AmeriHealth MCD, Anthem MCR, Anthem MCD, Anthem PPO, Anthem HMO, Cigna HMO, Cigna PPO, General PPO, General CHA, General MCD, General MCR, General HMO, General IND, General POS, HealthSmart PPO, Highmark MCD, Highmark IND, Highmark MCR, Highmark PPO, Highmark HMO, Humana MCR, Innovation POS, Innovation PPO, Innovation VH PPO, Innovation VH PPO, INTotal Health MCD, Multiplan POS, Multiplan PPO, Optima PPO, Optima MCD, The Health Plan MCD, The Health Plan MCR, The Health Plan PPO, TRICARE CHA, UniCare WV MCD, United MCR, United PPO, United HMO, VA Premier MCD, VHN PPO
  • Fellow of the American College of Surgeons (FACS) 2018
  • Fellow of the American College of Osteopathic Surgeons (FACOS) 2017
  • American College of Osteopathic Surgeons Robert C. Erwin Literary Award (First Place) 2016
  • Inaugural Recipient of Rowan School of Osteopathic Medicine Resident Golden Scalpel Award 2014
  • University of North Texas Health Science Center Chancellor’s Award for Scholarly Excellence 2009
  • Department of Surgery Award for Research Excellence in Surgery (Texas College of Osteopathic Medicine) 2009
  • Dean’s Award for Research Excellence (Texas College of Osteopathic Medicine) 2009
  • Board Certification
  • General Surgery
  • Training
  • DaVinci Robotics Console Surgeon Training 2016
  • DaVinci Robotics First Assistant Training 2013
  • Fellowship
  • Surgical Oncology Fellowship John Wayne Cancer Institute
    Santa Monica, CA
  • Residency
  • Surgical Residency University of Medicine and Dentistry of New Jersey / Rowan University School of Osteopathic Medicine
    Stratford, NJ
  • Internship
  • Surgical Internship University of Medicine and Dentistry of New Jersey / Rowan University School of Osteopathic Medicine
    Stratford, NJ
  • Medical School
  • Doctorate of Osteopathic Medicine Texas College of Osteopathic Medicine
    Fort Worth, TX
  • College
  • Graduate School (Doctorate of Philosophy in Integrative Physiology) University of Texas Graduate School of Biomedical Sciences
    Houston, TX
  • Undergraduate School (Bachelor of Arts in Biology) Baylor University
    Waco, TX


  • 01/27/2024
    Rating: 5

    Everything has been perfect

  • 12/21/2023
    Rating: 5

    Dr. Flarhety was very informative and answered all my questions and addressed all my concerns.

  • 11/18/2023
    Rating: 5

    Dr. Flaherty is always personable and professional!

  • 11/02/2023
    Rating: 4.8

    Dr F is a caring DR and I trust his decisions. Thank you