Summary

Dr. Timothy Byun is a hematology and oncology specialist who has dedicated 28 years to treating blood disorders and cancer. He earned his medical degree from Rush Medical College and completed both his residency and fellowship training at the University of California-Irvine, finishing his fellowship in 2004. Dr. Byun is fluent in both Korean and English, allowing him to serve patients from diverse backgrounds.

Dr. Byun practices at St. Joseph Heritage Medical Group in Orange, California, and maintains hospital privileges at Anaheim Global Medical Center. His clinical expertise focuses on breast cancer care, including advanced cases that have spread or returned after initial treatment. He also treats Paget disease of the breast, a rare form of breast cancer. Dr. Byun frequently performs essential diagnostic tests such as complete blood counts and comprehensive metabolic panels to monitor his patients' health and treatment progress. Patients have given him an average rating of 3.6 on Vitals.
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Quick Facts

  • accepting new patients
  • 3.5
  • 28 years of experience
  • 27 insurance plans accepted
  • speaks Korean, English
  • University of California- Irvine
  • 6 written reviews
  • 3 specialties
  • 19 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 1 office location
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Location

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Dr. Timothy Euiwon Byun, MDDr. Raghu Nandan, MDDr. Parastou TizroDr. Wendy Kadi
HematologyHematologyPathologyPathology
Accepts New Patients Accepts New Patients Accepts New Patients
3.5 
4.2 
28 Years of Experience 42 Years of Experience 17 Years of Experience 12 Years of Experience
Virtual Visit Available No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks Korean, English Speaks English, Tamil
Orange , CALakewood , CADuarte , CAEl Monte , CA
Med School: Medical Rush Medical College Med School: Madras Medical College Med School: Tabriz University Of Medical Sciences Med School: New York Institute Of Technology College Of Osteopathic Medicine
Current Profile
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Insurance Plans Accepted by Dr. Timothy Euiwon Byun

  • Accepts Medicare
  • Accepts Medicaid
  • 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
  • Cigna - HMO
  • Cigna PPO
  • Coventry/First Health PPO
  • Health Net - HMO
  • Health Net - Medicare Advantage
  • Health Net - PPO
  • HealthSmart (Interplan) PPO
  • Multiplan PPO
  • Providence Health Plan - Medicare Advantage
  • SCAN Medicare Advantage
  • TriWest - Tricare
  • United Healthcare HMO
  • United HealthCare PPO
  • US Family Health Plan - TriCare
  • Vivity by Anthem Blue Cross

Medical Specialties

Dr. Timothy Euiwon Byun has the following 3 specialties

Specialty Expertise

Dr. Timothy Euiwon Byun has the following 19 areas of expertise

  • Acute Myeloid Leukemia
  • Bone Marrow Transplant
  • Cancer
  • Chemotherapy
  • Chronic Myelomonocytic Leukemia
  • Deep Vein Thrombosis
  • Gastrointestinal Cancer
  • Hematologist
  • Hepatitis C
  • Hepatocellular Carcinoma
  • Leukemia
  • Lung Cancer
  • Lymphoma
  • Melanoma
  • Myelofibrosis
  • Myeloma
  • Oncologist
  • Skin Cancer
  • Urogenital Cancer (Genitourinary)

Certifications, License, & Education

28 Years Experience

MEDICAL LICENSE

Medical Doctor, California, 2027, Active

EDUCATION & TRAINING

Fellowship

University of California- Irvine2004

Residency

University of California- Irvine2001

Medical School

Medical Rush Medical CollegeGraduated in 1998

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Frequently Asked Questions

What languages does Dr. Timothy Byun speak?
Dr. Timothy Byun speaks Korean and English.
Where is Dr. Timothy Byun's office located?
Dr. Timothy Byun's office is located at 1010 W La Veta Ave Ste 200, Orange, CA, 92868.
Is Dr. Timothy Byun accepting new patients?
Dr. Timothy Byun is accepting new patients on Vitals. View Dr. Timothy Byun's profile on Vitals to make an appointment.
Does Dr. Timothy Byun accept virtual/telehealth appointments?
Yes, Dr. Timothy Byun accepts virtual/telehealth appointments. Click the virtual visit button on their Vitals profile.
Which hospitals is Dr. Timothy Byun affiliated with?
Dr. Timothy Byun is affiliated with Anaheim Global Medical Center.

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