Careers With St. Joseph Health

Our Values are more than just words.

They form the heart and soul of St. Joseph Health and are the prime reason we attract and retain high-caliber employees who believe in the sanctity of their work in our faith-based setting.

Recent News

Irvine school nurses, staff learn Stop the Bleed techniques to respond in mass-casualty situation

Irvine school nurses and athletic trainers on Tuesday, Jan. 30, learned simple techniques that could save lives in a shooting or other ...

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Families anticipate exciting community blessing of surgical center

A community is as strong as its hospital, and with recent investments into Covenant Health Plainview, it’s evident that to our friends ...

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Severe Flu Season Tightens Its Grip on U.S.

Americans are being hit with one of the worst flu seasons in years, with misery now widespread across 46 states, health officials say. In ...

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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.

Timothy E. Byun, MD

Specialty
  • Hematology
    (Board Certified)
  • Oncology - Medical
    (Board Certified)
Additional Language Spoken
Korean, Spanish
Address
1010 W. La Veta Ave.
Suite 200
Orange, CA 92868

Primary Office

Address
1010 W. La Veta Ave.
Suite 200
Orange, CA 92868
Get Directions
Phone
(714) 835-1800
Fax
(714) 835-1811
Hours
Mon - Thu 9 a.m. - 6 p.m., Fri 9:0

More Information

Website
www.sjo.org
Medical Groups & Affiliations
  • St. Joseph Heritage Medical Group
  • St. Joseph Hospital Affiliated Physicians

Video

  • Meet The Doctor

    Specialties & Education

    Primary Specialties
    • Hematology
      (Board Certified)
    • Oncology - Medical
      (Board Certified)
    Education & Training
    • College
      University of Chicago - 1994
    • Medical School
      Medical Rush Medical College - 1998
    • Residency
      University of California- Irvine - 2001
    • Fellowship
      University of California- Irvine - 2004
    Areas of Interest

    Gastrointestinal Malignancy
    Melanoma
    Head and Neck Cancer
    Lung Cancer
    Breast Cancer
    Genitourinary Cancers
    Lymphom/Leukemia/Myeloma
    Sarcoma
    Clinical Trials

  • Biography

    Biography

    Biography

    Dr. Tim Byun is board-certified in medical oncology, hematology, and internal medicine. He graduated from the University of Chicago with a B.S. in biological chemistry and received his medical doctorate degree from Rush Medical College in Chicago. He completed both his internal medicine residency and hematology/ oncology fellowship training at the University of California at Irvine. His fellowship research focused on gastric and colon cancer stem cell molecular signaling.

    Dr. Byun has also designed a translational research trial for metastatic gastric cancer. He served as an assistant clinical professor in the Hematology/ Oncology Division at University of California at Irvine, and has received a certificate of special congressional recognition for his involvement in community health service.

    Dr. Byun is actively involved in various clinical trials at The Center for Cancer Prevention and Treatment at St. Joseph Hospital, and has been selected as an America’s Top Oncologist by Consumer’s Research Council of America.

    Areas of Expertise
    General Hematology/Oncology