Armstrong, Prof. John

"My treatment at James (centre) was excellent with a caring staff who made me feel comfortable.…

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Professor John G. Armstrong


Radiation Oncologist


St. Luke's Hospital - see location

Tel 01 406 5000 - St. Luke's Hospital

  • Prostate cancer
  • Breast cancer
  • Head and neck cancer
  • Stereotactic radiosurgery
  • Stereotactic ablative body radiotherapy (SABeR)
  • Prostate cancer
  • Lung cancer
  • Application of radiation technologies to patient care
  • American Society for Therapeutic Radiology & Oncology
  • American Society of Clinical Oncology
  • European Society for Radiotherapy & Oncology
  • Faculty of Radiologists, Royal College of Surgeons in Ireland
  • International Association for the Study of Lung Cancer
  • Irish Clinical Oncology Research Group
  • Royal College of Physicians of Ireland


  • Graduate of University College Dublin (1983).
  • Resident in Radiation Oncology, Memorial Sloan-Kettering Cancer Center (MSKCC), New York (1986-1988).
  • Chief Resident in Radiation Oncology, MSKCC (1988-1989).
  • Clinical Assistant Physician (Consultant), MSKCC (1989-1992).
  • Assistant Member and ssistant Attending (Consultant), MSKCC (1992-1994).
  • Assistant Professor in Medicine, Cornell University Medical School (1992-1994).
  • Consultant Radiation Oncologist, AMNCH & St. Luke's Hospital, Dublin (1994 to 2003).
  • Medical Director, St. Luke's & St. Anne's Hospital, Dublin (Mar-1996 to Jul-2002).
  • Director of Research, St. Luke's Hospital, Dublin (Sep-2002 to date).
  • Consultant Radiation Oncologist/Professor in Radiotherapy & Clinical Oncology, St. Luke's Hospital, St. Vincent's University Hospital & UCD (Oct-2003 to date).


Prof. Armstrong has published numerous articles and has lectured extensively in the field of radiation oncology.

He has been instrumental in the rollout of new procedures involving high-tech radiation therapy procedures such as Intensity Modulated Radiation Therapy (IMRT) and stereotactic radiosurgery.