Accepting New Patients

Robert Ash, MD

  • Radiation Oncology
    (Board Certified)
Primary Address | Office Details

1000 West La Veta Avenue

Orange, CA 92868

Phone: (714) 734-6250

Fax: (714) 734-6251

Medical Groups & Affiliations
  • St. Joseph Hospital Affiliated Physicians
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to Your Provider
(714) 734-6250
  • Meet The Provider

    Robert Ash, MD., brings more than two decades of radiation oncology experience to St. Joseph Hospital. Throughout his career he has been top-rated for excellence in skill and interaction with his patients. He was previously nominated for Top Doctors of Orange County.

    Trained in all aspects of radiation oncology, Dr. Ash specializes in prostate, lung and breast cancers, as well as intraoperative radiotherapy (IORT) and stereotactic radiosurgery. He is involved in enrolling patients into clinical trials through the NSABP and NRG cooperative Groups.

    A native of Canada, Dr. Ash received his music and medical degrees from Memorial University of Newfoundland. He continued his residency training at the University of Western Ontario and the University of California San Francisco.

    A strong believer in collaboration, Dr. Ash sees the role of the radiation oncologist as a key member of the multidisciplinary team dedicated to providing patients with the best possible care using the latest technology.

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    Primary Specialties
    Primary Specialties
    • Radiation Oncology
      (Board Certified)
    Other Specialties Associations Awards
    2018 - Physicians of Excellence, OCMA
    Areas of Interest
    Areas of Interest

    Thoracic Cancer
    Genitourinary Tumors
    Prostate Brachytherapy
    Stereotactic Radiosurgery

    Education & Training
    • Medical School
      Memorial University of Newfoundland School of Medicine - 1995
    • Internship
      University of Western Ontario - 1996
    • Residency
      University of Western Ontario - 2000
    Areas of Expertise
    Areas of Expertise
    Dr. Ash was the Chair of Undergraduate Medical Education for Oncology - University of Western Ontario, Chair of Thoracic Disease Site University of Western Ontario, and an Associate Professor at University of Western Ontario.
  • Primary Location

City of Hope Orange

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