Accepting New Patients
Offers Video Visits
Medical Group Provider

Timothy Byun, MD

4.9 out of 5 (267 Ratings)
Specialty
  • Hematology Oncology
Languages
Korean, English
Primary Address | Office Details
St. Joseph Heritage Medical Group - Hematology Oncology
1010 West La Veta Avenue
Suite 200

Orange, CA 92868

Phone: (714) 541-6622

Fax: (714) 541-0531

Medical Groups & Affiliations
  • St. Joseph Heritage Medical Group
Get Connected
to Your Provider
(714) 541-6622

Request Appointment

  • Staff front and back were nice, kind, cordial. Dr Byun is my hero he saved my life after Dx with triple negative breast cancer. Thank you Dr Byun may God bless you and your family.
    Dr Byun has brought me through a very difficult time. He is excellent. I will be forever grateful for all the care that I have received.
    My provider seems like always in a hurry to leave and won't encourage the patient to ask questions or concerns about my health.
    11-Mar-2025
    Thank you for sharing your experience with us. Patient satisfaction is important to us at Providence, so we will make every effort to address any concerns. If you would like to discuss your experience with us further, please email us at Transparency@stjoe.org with comment ID 168258197 in the subject line.
    He is always kind and informative.
    Very good
    100 Total Comments Page 1 2 3 4 5 6 7  . . . 16 17 18 19 20   Next
  • Meet The Provider
    Biography

    Dr. Tim Byun is a board-certified Hematologist/Medical Oncologist practicing for over 20 years in Orange County. He completed medical school at Rush Medical School in Chicago followed by Internal Medicine Residency, Hematology/Oncology Fellowship at University of California, Irvine. He is a staff physician at Providence St. Joseph Hospital.

    Dr. Byun’s areas of expertise and clinical areas of interest includes general hematology, medical oncology, and clinical cancer research. He values comprehensive, compassionate care which frequently needs interdisciplinary approach. He has been involved in cancer research and published in medical journals. He has received awards including OCMA physician of excellence. He is involved in leadership positions including Medical Director for Cancer Research at the Center for Cancer Prevention and Research, Providence St. Joseph.

    Read More
    Primary Specialties
    Primary Specialties
    • Hematology Oncology
    Other Specialties Associations Areas of Interest
    Areas of Interest

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

    Certifications
    Board Certifications

    American Board of Internal Medicine, Hematology

    American Board of Internal Medicine, Hematology and Oncology

    American Board of Internal Medicine, Internal Medicine

    American Board of Internal Medicine, Medical Oncology

    Education
    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
  • Insurance Accepted

    Insurance Accepted

    • Insurance Plan

    • Aetna HMO
    • Aetna Medicare Advantage HMO
    • Aetna Medicare Advantage PPO
    • Aetna PPO
    • Anthem Blue Cross HMO
    • Anthem Blue Cross Medicare Advantage
    • Anthem Blue Cross Medicare PPO
    • Anthem Blue Cross PPO
    • Blue Shield of CA HMO
    • Blue Shield of CA HMO - Trio
    • Blue Shield of CA Medicare Advantage
    • Blue Shield of CA PPO
    • Choice/Humana PPO
    • Cigna HMO
    • Cigna PPO
    • Coventry/First Health PPO
    • Health Net - Medicare Advantage
    • Health Net HMO
    • Health Net PPO
    • HealthSmart (Interplan) PPO
    • Multiplan PPO
    • Providence Medicare Advantage
    • SCAN Medicare Advantage
    • TriWest - Tricare
    • United Healthcare HMO
    • United Healthcare Medicare Advantage
    • United HealthCare PPO
    • US Family Health Plan - TriCare
    • Vivity by Anthem Blue Cross
 
  • Primary Location

St. Joseph Heritage Medical Group - Hematology Oncology