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About St. Joseph Health

SJH provides a full range of care facilities including 16 acute care hospitals, home health agencies, hospice care, outpatient services, skilled nursing facilities, community clinics and physician groups. All of our hospital and home health entities are accredited by the Joint Commission. In our award-winning facilities, SJH maintains a "continuum of care," matched to the diverse needs of the urban centers, smaller cities and rural communities who depend on us every day.

Ashley S. Plant, MD

  • Hematology Oncology
Additional Language Spoken
Medical Groups & Affiliations
  • St. Joseph Heritage Medical Group
CHOC Children's Specialists - Hematology Oncology
1201 West La Veta Avenue
Orange, CA 92868
Accepting New Patients

Primary Office

CHOC Children's Specialists - Hematology Oncology
1201 West La Veta Avenue
Orange, CA 92868
Get Directions
(714) 509-8636
(714) 509-4748
Mon - Fri: 8 a.m. - 5 p.m.

More Information

  • Meet The Doctor

    Specialties & Education

    Primary Specialties
    • Hematology Oncology
    Secondary Specialties
    • Pediatrics
      (Board Certified)
    Education & Training
    • Medical School
      Standford University School of Medicine - 2010
    • Internship
      University of California Los Angeles - 2011
    • Residency
      University of California Los Angeles - 2013
    • Fellowship
      Boston Children's Hospital - 2016
  • Biography


    Dr. Ashley Plant is a CHOC Children’s specialist in pediatric oncology with a clinical focus in pediatric neuro-oncology and immunotherapy.

    Dr. Plant is a member of the neuro-oncology team at CHOC and cares for all types of childhood brain tumors. Her research interests include early clinical trials for brain tumors and immunotherapy. She has a special interest in understanding how the immune system and cancer interact and how this can be exploited for future therapies. She is currently working on bringing a heat shock protein vaccine targeted to specific neo-antigens (or markers) specific to diffuse intrinsic pontine glioma (DIPG) tumors to CHOC.

    She has acquired years of experience in the laboratory evaluating the immune cells present in individual brain tumors in an effort to understand how we can use the immune response to kill tumor cells. She was awarded a Young Investigator Award in 2016 by Adaptive Biotechnologies for her work. She has also presented her work at multiple national and international conferences including the 2016 International Symposium on Pediatric Neuro-Oncology in Liverpool, UK.

    Dr. Plant is board certified in pediatrics and board eligible for pediatric hematology/oncology. Before joining CHOC Children’s, Dr. Plant attended Stanford School of Medicine. She served her internship and residency at University of California, Los Angeles and completed a pediatric hematology/oncology fellowship at Boston Children’s Hospital/Dana Farber Cancer Institute. Before joining the CHOC team, she was previously a neuro-oncologist at Boston Children’s Hospital/Dana Farber Cancer Institute with an appointment of clinical instructor at Harvard Medical School and there she focused on clinical trial design for pediatric neuro-oncology.