Principal Investigators and Research Publications
John M. Sayles

John M. Sayles, M.D., FACS, FASCRS

Sentara Surgery Specialists

Medical Education and Training

  • Medical School

    University of Illinois College of Medicine

  • Internship

    Walter Reed Army Medical Center

  • Residency

    Walter Reed Army Medical Center

  • Fellowship

    Lahey Clinic
    Colon & Rectal Surgery

Board Certifications

  • Board-certified by the American Board of Colon and Rectal Surgery
  • Board-certified by the American Board of Surgery

Areas of Research

  • Colon and rectal surgery


Dr. Sayles earned his medical degree from the University of Illinois, College of Medicine in 1989 after receiving his bachelor’s degree in biochemistry at Northwestern University in 1985. He completed his internship and residency at Walter Reed Army Medical Center in Washington, DC, in 1997 and completed fellowship training in colon and rectal surgery at the Lahey Clinic in Burlington, MA, in 2001. Dr. Sayles is skilled and experienced in the latest surgical technology, including laparoscopic and robotic procedures. He is a specialist in colon, rectal, and anal problems. Dr. Sayles and the highly trained team of professionals at Sentara Surgery Specialists focus on their patients’ complete health, including diagnostic testing, counseling on disease processes, and methods of treatment and required surgery. He is an assistant professor of clinical surgery at Eastern Virginia Medical School.

Publications and Projects

Visit PubMed for a full listing of Dr. Sayles’ journal articles. PubMed is an online index of research papers and other articles from the US National Library of Medicine and the National Institutes of Health.

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