Dr. Robert B. Ash, Pediatric Radiation Oncology

Dr. Ash is on staff at CHOC Children’s Hospital.


1000 W La Veta Ave
Orange, CA 92868
phone: (714) 734-6250
fax: (714) 744-8573


  • Medical School
    Memorial University of Newfoundland, St John’s, Canada
  • Radiation Oncology Residency
    University of Western Ontario, London, Ontario, Canada

  • Robert B Ash MD
    • Appointments:
    • Specialty: Radiation Oncology
    • Board Certified: Radiation Oncology
    • On Staff at: CHOC Children's Hospital